单选题It is difficult to send people to other planets because of ______.Alack of capacity of space exploration vehicles.Bthe financial expenditure involved in space travel.Ccontroversial nature of space travel.Dthe uncertain future of space exploration.
单选题
It is difficult to send people to other planets because of ______.
A
lack of capacity of space exploration vehicles.
B
the financial expenditure involved in space travel.
C
controversial nature of space travel.
D
the uncertain future of space exploration.
参考解析
解析：
细节理解题。根据题干信息定位到第三段“Perhaps the most difficult problem space planners face is how to finance a vigorous program of piloted space exploration…”，由此可知，太空探索规划者们面对的最大问题可能是为在地球轨道以及地球轨道以外的载人太空探索项目筹措资金，即人类抵达其他星球的最大问题是资金问题，故答案为B项。
细节理解题。根据题干信息定位到第三段“Perhaps the most difficult problem space planners face is how to finance a vigorous program of piloted space exploration…”，由此可知，太空探索规划者们面对的最大问题可能是为在地球轨道以及地球轨道以外的载人太空探索项目筹措资金，即人类抵达其他星球的最大问题是资金问题，故答案为B项。
相关考题：
More people visit the Air and Space Museum honoring men and women who have pioneered flight and the exploration of space than _____ any other monument or museum in the entire country.A:visitB:to visitC:visitedD:visiting
Evaluate the following command and its output:Which two statements correctly interpret the output?() A. FREE_SPACE indicates only the space that is currently unallocated.B. ALLOCATED_SPACE indicates only the space currently allocated and in use.C. FREE_SPACE indicates only the space that is currently allocated and available for reuse.D. ALLOCATED_SPACE indicates both the space currently allocated and used, and the space that is available for reuse.E. FREE_SPACE indicates both the space that is currently allocated and available for reuse, and the space that is currently unallocated.
共用题干第二篇The Mir Space StationThe Russian Mir Space Station,which came down in 2001 at last after 15 years of pioneering the concept of long-term human space flight,is remembered for its accomplishments in the human space flight history.It can be credited with many firsts in space.During Mir's lifetime,Russia spent about US $4.2 billion to build and maintain the station.The Soviet Union launched Mir,which was designed to last from three to five years,on February 20, 1986,and housed 104 astronauts over 12 years and seven months,most of whom were not Russian.In fact, it became the first international space station by playing host to 162 people from 1 1 countries.From 1995 through 1998,seven astronauts from the United States took turns living on Mir for up to six months each.They were among the 37 Americans who visited the station during nine stopovers by space shuttles.The more than 400 million the United States provided Russian for the visits not only kept Mir operating,but also gave the Americans and their partners in the international station project valuable experience in long-term flight and multinational operations.A debate continues over Mir's contributions to science.During its existence,Mir was the laboratory for 23,000 experiments and carried scientific equipment,estimated to be worth $80 million,from many nations.Experiments on Mir are credited with a range of findings,from the first solid measurement of the ration of heavy helium（氦）atoms in space to how to grow wheat in space.But for those favouring human space exploration,Mir showed that people could live and work in space long enough for a trip to Mars.The longest single stay in space is the 437.7 days that Russian astronaut Valery Polyakov spent on Mir from 1994 to 1995.And Sergie Avdeyev accumulated 747.6 days in space in three trips to the space station.The longest American stay was that of Shannon Lucid,who spent 188 days aboard Mir in 1996.Despite the many firsts Mir accomplished,1997 was a bad year out of 15 for Mir.In 1997,an oxygen generator caught fire.Later,the main computer system broke down,causing the station to drift several times and there were power failures.Most of these problems were repaired,with American help and suppliers,but Mir's reputation as a space station was ruined.Mir's setbacks are nothing,though,when we compare them with its accomplishments.Mir was a tremendous success,which will be remembered as a milestone in space exploration and the space station that showed long-term human habitation in space was possible.But it's time to move on to the next generation.The International Space Station being built will be better,but it owes a great debt to Mir.It can be inferred from the last paragraph that______.A:space exploration will not experience setbacksB:it is difficult for other space stations to exceed Mir's successC:Mir is the best long-term human habitation in space in historyD:multinational space operations are getting more accomplishments
共用题干第二篇The Mir Space StationThe Russian Mir Space Station,which came down in 2001 at last after 15 years of pioneering the concept of long-term human space flight,is remembered for its accomplishments in the human space flight history.It can be credited with many firsts in space.During Mir's lifetime,Russia spent about US $4.2 billion to build and maintain the station.The Soviet Union launched Mir,which was designed to last from three to five years,on February 20, 1986,and housed 104 astronauts over 12 years and seven months,most of whom were not Russian.In fact, it became the first international space station by playing host to 162 people from 1 1 countries.From 1995 through 1998,seven astronauts from the United States took turns living on Mir for up to six months each.They were among the 37 Americans who visited the station during nine stopovers by space shuttles.The more than 400 million the United States provided Russian for the visits not only kept Mir operating,but also gave the Americans and their partners in the international station project valuable experience in long-term flight and multinational operations.A debate continues over Mir's contributions to science.During its existence,Mir was the laboratory for 23,000 experiments and carried scientific equipment,estimated to be worth $80 million,from many nations.Experiments on Mir are credited with a range of findings,from the first solid measurement of the ration of heavy helium（氦）atoms in space to how to grow wheat in space.But for those favouring human space exploration,Mir showed that people could live and work in space long enough for a trip to Mars.The longest single stay in space is the 437.7 days that Russian astronaut Valery Polyakov spent on Mir from 1994 to 1995.And Sergie Avdeyev accumulated 747.6 days in space in three trips to the space station.The longest American stay was that of Shannon Lucid,who spent 188 days aboard Mir in 1996.Despite the many firsts Mir accomplished,1997 was a bad year out of 15 for Mir.In 1997,an oxygen generator caught fire.Later,the main computer system broke down,causing the station to drift several times and there were power failures.Most of these problems were repaired,with American help and suppliers,but Mir's reputation as a space station was ruined.Mir's setbacks are nothing,though,when we compare them with its accomplishments.Mir was a tremendous success,which will be remembered as a milestone in space exploration and the space station that showed long-term human habitation in space was possible.But it's time to move on to the next generation.The International Space Station being built will be better,but it owes a great debt to Mir.We can learn from the passage that the Mir Space Station______.A:was designed to last over 5 yearsB:played host to 7 astronauts from different countriesC:was visited only by AmericansD:was built by Russians
共用题干The Race Into SpaceAmerican millionaire Dennis Tito will always be famous.He was the first tourist in space."I spent sixty years on Earth and eight days in space and from my viewpoint,it was two separate lives,"Tito explained.He loxed his time in space."Being in space and looking back at the earth is one of the most rewarding experi-ences a human being can have."This kind of experience isn't cheap.It cost$20 million.However,Tito achieved his dream,so he was happy."For me it was a life dream.It was a dream that began when I didn't have any money,"he told reporters.On 24th,April 2002,Mark Shuttleworth became the world's second space tourist.Shuttleworth is a South African businessman.At the age of twenty-eight,he also paid $20 million for the eight-day trip.Both Tito and Shuttleworth bought their tickets from a company called Space Adventures.The company has around 100 people already on their waiting list for flights into space.The spaceship to take them doesn't exist yet.Many of the customers are people who like adventure.They are the kind of people who also want to climb Mount Qomolangma.Other customers are people who love space.However,these people are worried.Because it's so expensive,only very rich people can go into space.They want space travel to be available to more people.That day may soon be here.InterOrbital Systems(IOS)plans to send up to four tourists a week into space.The tours will depart from an island in Tonga.The company promises a package that includes forty-five days of astronaut training in Russia and California,seven days in space and a vacation in Tonga,for $2 million.However,space flight is still very dangerous.Bill Readdy is NASA's deputy assistant administrator for space flight.He says that the chances of dying are about 1 in 500.Because of this,it may take time before space tourism really takes off.You might be able to go up,but will you come down?Space Adventures already has a spaceship.A:RightB:WrongC:Not mentioned
共用题干The Race Into SpaceAmerican millionaire Dennis Tito will always be famous.He was the first tourist in space."I spent sixty years on Earth and eight days in space and from my viewpoint,it was two separate lives,"Tito explained.He loxed his time in space."Being in space and looking back at the earth is one of the most rewarding experi-ences a human being can have."This kind of experience isn't cheap.It cost$20 million.However,Tito achieved his dream,so he was happy."For me it was a life dream.It was a dream that began when I didn't have any money,"he told reporters.On 24th,April 2002,Mark Shuttleworth became the world's second space tourist.Shuttleworth is a South African businessman.At the age of twenty-eight,he also paid $20 million for the eight-day trip.Both Tito and Shuttleworth bought their tickets from a company called Space Adventures.The company has around 100 people already on their waiting list for flights into space.The spaceship to take them doesn't exist yet.Many of the customers are people who like adventure.They are the kind of people who also want to climb Mount Qomolangma.Other customers are people who love space.However,these people are worried.Because it's so expensive,only very rich people can go into space.They want space travel to be available to more people.That day may soon be here.InterOrbital Systems(IOS)plans to send up to four tourists a week into space.The tours will depart from an island in Tonga.The company promises a package that includes forty-five days of astronaut training in Russia and California,seven days in space and a vacation in Tonga,for $2 million.However,space flight is still very dangerous.Bill Readdy is NASA's deputy assistant administrator for space flight.He says that the chances of dying are about 1 in 500.Because of this,it may take time before space tourism really takes off.You might be able to go up,but will you come down?Mark Shuttleworth is an engineer from the United States.A:RightB:WrongC:Not mentioned
共用题干The Race Into SpaceAmerican millionaire Dennis Tito will always be famous.He was the first tourist in space."I spent sixty years on Earth and eight days in space and from my viewpoint,it was two separate lives,"Tito explained.He loxed his time in space."Being in space and looking back at the earth is one of the most rewarding experi-ences a human being can have."This kind of experience isn't cheap.It cost$20 million.However,Tito achieved his dream,so he was happy."For me it was a life dream.It was a dream that began when I didn't have any money,"he told reporters.On 24th,April 2002,Mark Shuttleworth became the world's second space tourist.Shuttleworth is a South African businessman.At the age of twenty-eight,he also paid $20 million for the eight-day trip.Both Tito and Shuttleworth bought their tickets from a company called Space Adventures.The company has around 100 people already on their waiting list for flights into space.The spaceship to take them doesn't exist yet.Many of the customers are people who like adventure.They are the kind of people who also want to climb Mount Qomolangma.Other customers are people who love space.However,these people are worried.Because it's so expensive,only very rich people can go into space.They want space travel to be available to more people.That day may soon be here.InterOrbital Systems(IOS)plans to send up to four tourists a week into space.The tours will depart from an island in Tonga.The company promises a package that includes forty-five days of astronaut training in Russia and California,seven days in space and a vacation in Tonga,for $2 million.However,space flight is still very dangerous.Bill Readdy is NASA's deputy assistant administrator for space flight.He says that the chances of dying are about 1 in 500.Because of this,it may take time before space tourism really takes off.You might be able to go up,but will you come down?Space Adventures has about 100 customers waiting for their travel into space.A:RightB:WrongC:Not mentioned
共用题干The Race Into SpaceAmerican millionaire Dennis Tito will always be famous.He was the first tourist in space."I spent sixty years on Earth and eight days in space and from my viewpoint,it was two separate lives,"Tito explained.He loxed his time in space."Being in space and looking back at the earth is one of the most rewarding experi-ences a human being can have."This kind of experience isn't cheap.It cost$20 million.However,Tito achieved his dream,so he was happy."For me it was a life dream.It was a dream that began when I didn't have any money,"he told reporters.On 24th,April 2002,Mark Shuttleworth became the world's second space tourist.Shuttleworth is a South African businessman.At the age of twenty-eight,he also paid $20 million for the eight-day trip.Both Tito and Shuttleworth bought their tickets from a company called Space Adventures.The company has around 100 people already on their waiting list for flights into space.The spaceship to take them doesn't exist yet.Many of the customers are people who like adventure.They are the kind of people who also want to climb Mount Qomolangma.Other customers are people who love space.However,these people are worried.Because it's so expensive,only very rich people can go into space.They want space travel to be available to more people.That day may soon be here.InterOrbital Systems(IOS)plans to send up to four tourists a week into space.The tours will depart from an island in Tonga.The company promises a package that includes forty-five days of astronaut training in Russia and California,seven days in space and a vacation in Tonga,for $2 million.However,space flight is still very dangerous.Bill Readdy is NASA's deputy assistant administrator for space flight.He says that the chances of dying are about 1 in 500.Because of this,it may take time before space tourism really takes off.You might be able to go up,but will you come down?IOS will send its tourists into space from Tonga.A:RightB:WrongC:Not mentioned
共用题干第三篇Human Space ExplorationWhile scientists are searching the cause of the Columbia disaster,NASA is moving ahead with plans to develop a new craft that would replace shuttles（航天飞机）on space station missions by 2012 and respond quickly to space station emergencies.The space agency released the first set of mission needs and requirements several days ago for the orbital space plane（轨道航天飞机）,which would be designed to transport a crew of four to and from the International Space Station.Although it includes few specifics, the plan states the orbiter（轨道航天飞机）will be safer,cheaper and require less preparation time than the shuttle.It would be able to transport four crew members by 2012一though it would be available for rescue missions by 2010.NASA says the craft should be able to transport injured or ill space station crew members to "definitive（决定性的）medical care" within 24 hours.The release of the requirements showed NASA remains focused on the long-term priorities of space exploration,even as questions exist concerning the loss of Columbia and its seven-member crew on February 1,2003.Experts at Marshall Space Flight Center in Huntsville,Alabama,have been working for years on a successor to the shuttle.The project,known as the Space Launch Initiative（倡议）,was divided last year into two parts一one focusing on a future launch vehicle,the other on a space station orbiter. The orbiter is expected to be ready sooner.The program's managers say NASA officials have told them not to alter Space Launch Initiative in light of the Columbia disaster.U.S. President George W. Bush asked Congress for about U.S.$1 billion for Space Launch Initiative in 2004,funds that would be almost equally split between the Orbital Space Plane and Next Generation Launch Technology.According to the passage,the 1 billion funds,if granted,wouldA:be used to rebuild the International Space Station.B:be awarded to the scientists working at NASA.C:be shared by the two projects under the Space Launch Initiative.D:be spent on the investigation of the Columbia disaster.
共用题干第三篇Human Space ExplorationWhile scientists are searching the cause of the Columbia disaster,NASA is moving ahead with plans to develop a new craft that would replace shuttles（航天飞机）on space station missions by 2012 and respond quickly to space station emergencies.The space agency released the first set of mission needs and requirements several days ago for the orbital space plane（轨道航天飞机）,which would be designed to transport a crew of four to and from the International Space Station.Although it includes few specifics, the plan states the orbiter（轨道航天飞机）will be safer,cheaper and require less preparation time than the shuttle.It would be able to transport four crew members by 2012一though it would be available for rescue missions by 2010.NASA says the craft should be able to transport injured or ill space station crew members to "definitive（决定性的）medical care" within 24 hours.The release of the requirements showed NASA remains focused on the long-term priorities of space exploration,even as questions exist concerning the loss of Columbia and its seven-member crew on February 1,2003.Experts at Marshall Space Flight Center in Huntsville,Alabama,have been working for years on a successor to the shuttle.The project,known as the Space Launch Initiative（倡议）,was divided last year into two parts一one focusing on a future launch vehicle,the other on a space station orbiter. The orbiter is expected to be ready sooner.The program's managers say NASA officials have told them not to alter Space Launch Initiative in light of the Columbia disaster.U.S. President George W. Bush asked Congress for about U.S.$1 billion for Space Launch Initiative in 2004,funds that would be almost equally split between the Orbital Space Plane and Next Generation Launch Technology.NASA plans to design the new space craft toA:control the International Space Station.B:carry astronauts to the International Space Station.C:transport equipment to the International Space Station.D:train astronauts in space flights.
共用题干第三篇Human Space ExplorationWhile scientists are searching the cause of the Columbia disaster,NASA is moving ahead with plans to develop a new craft that would replace shuttles（航天飞机）on space station missions by 2012 and respond quickly to space station emergencies.The space agency released the first set of mission needs and requirements several days ago for the orbital space plane（轨道航天飞机）,which would be designed to transport a crew of four to and from the International Space Station.Although it includes few specifics, the plan states the orbiter（轨道航天飞机）will be safer,cheaper and require less preparation time than the shuttle.It would be able to transport four crew members by 2012一though it would be available for rescue missions by 2010.NASA says the craft should be able to transport injured or ill space station crew members to "definitive（决定性的）medical care" within 24 hours.The release of the requirements showed NASA remains focused on the long-term priorities of space exploration,even as questions exist concerning the loss of Columbia and its seven-member crew on February 1,2003.Experts at Marshall Space Flight Center in Huntsville,Alabama,have been working for years on a successor to the shuttle.The project,known as the Space Launch Initiative（倡议）,was divided last year into two parts一one focusing on a future launch vehicle,the other on a space station orbiter. The orbiter is expected to be ready sooner.The program's managers say NASA officials have told them not to alter Space Launch Initiative in light of the Columbia disaster.U.S. President George W. Bush asked Congress for about U.S.$1 billion for Space Launch Initiative in 2004,funds that would be almost equally split between the Orbital Space Plane and Next Generation Launch Technology.The design of the orbiter indicatesA:NASA's determination to continue space exploration.B:NASA's disadvantage in space technology.C:the great pressure from Congress on NASA.D:a heavy defeat for NASA.
共用题干第三篇Human Space ExplorationWhile scientists are searching the cause of the Columbia disaster,NASA is moving ahead with plans to develop a new craft that would replace shuttles（航天飞机）on space station missions by 2012 and respond quickly to space station emergencies.The space agency released the first set of mission needs and requirements several days ago for the orbital space plane（轨道航天飞机）,which would be designed to transport a crew of four to and from the International Space Station.Although it includes few specifics, the plan states the orbiter（轨道航天飞机）will be safer,cheaper and require less preparation time than the shuttle.It would be able to transport four crew members by 2012一though it would be available for rescue missions by 2010.NASA says the craft should be able to transport injured or ill space station crew members to "definitive（决定性的）medical care" within 24 hours.The release of the requirements showed NASA remains focused on the long-term priorities of space exploration,even as questions exist concerning the loss of Columbia and its seven-member crew on February 1,2003.Experts at Marshall Space Flight Center in Huntsville,Alabama,have been working for years on a successor to the shuttle.The project,known as the Space Launch Initiative（倡议）,was divided last year into two parts一one focusing on a future launch vehicle,the other on a space station orbiter. The orbiter is expected to be ready sooner.The program's managers say NASA officials have told them not to alter Space Launch Initiative in light of the Columbia disaster.U.S. President George W. Bush asked Congress for about U.S.$1 billion for Space Launch Initiative in 2004,funds that would be almost equally split between the Orbital Space Plane and Next Generation Launch Technology.When did NASA start working on a successor to the shuttle?A:One year before the Columbia disaster.B:One year after the Columbia disaster.C:Immediately after the Columbia disaster.D:Years before the Columbia disaster.
His report on the space exploration was really________.A.excitingB.excitedC.excitementD.excitedly
A customer has an IBM System Storage DS8100 with 128 DDMs and needs to add additional capacity. What must be verified by the Business Partner during the visit to the computer room（）A、the space for the upgrade to a DS8700B、the space on the left of the DS8000 for an expansion frameC、the space on the right of the DS8000 for an expansion frameD、the space to install additional DDMs in the base frame
Evaluate the following command and its output： SQLSELECT * FROM dba_temp_free_space； TABLESPACE_NAME TABLESPACE_SIZE ALLOCATED_SPACE FREE_SPACE LMTEMP 250609664 101048576 149561088 Which two statements correctly interpret the output？（）A、 FREE_SPACE indicates only the space that is currently unallocated.B、 ALLOCATED_SPACE indicates only the space currently allocated and in use.C、 FREE_SPACE indicates only the space that is currently allocated and available for reuse.D、 ALLOCATED_SPACE indicates both the space currently allocated and used，and the space that is available for reuse.E、 FREE_SPACE indicates both the space that is currently allocated and available for reuse，and the space that is currently unallocated.
Which statement describes the information returned by the DBMS_SPACE.SPACE_USAGE procedure for LOB space usage？（）A、 It returns space usage of only BasicFile LOB chunks.B、 It returns space usage of only SecureFile LOB chunks.C、 It returns both BasicFile and SecureFile LOB space usage for only nonpartitioned tables.D、 It returns both BasicFile and SecureFile LOB space usage for both partitioned and nonpartitioned tables.
多选题Evaluate the following command and its output: Which two statements correctly interpret the output?（）AFREE_SPACE indicates only the space that is currently unallocated.BALLOCATED_SPACE indicates only the space currently allocated and in use.CFREE_SPACE indicates only the space that is currently allocated and available for reuse.DALLOCATED_SPACE indicates both the space currently allocated and used, and the space that is available for reuse.EFREE_SPACE indicates both the space that is currently allocated and available for reuse, and the space that is currently unallocated.
单选题The key to the industrialization of space is the US space shuttle with it, astronauts will acquire a workhouse vehicle _____ of flying into space and returning many times.AcapableBsuitableCefficientDfit
单选题Which statement describes the information returned by the DBMS_SPACE.SPACE_USAGE procedure for LOB space usage?（）AIt returns space usage of only BasicFile LOB chunks.BIt returns space usage of only SecureFile LOB chunks.CIt returns both BasicFile and SecureFile LOB space usage for only nonpartitioned tables.DIt returns both BasicFile and SecureFile LOB space usage for both partitioned and nonpartitioned tables.
单选题It can be inferred from Paragraph 2 that human society will become increasingly ______.Aworried about life on other planets.Bdependent on space tourism.Caccustomed to long-distance flights.Dassociated with space exploration.
单选题All units of measurement are（）, because space, time, weight, and other dimensions are not naturally divided into units.AobjectiveBtraditionalCartificialDcontroversial
问答题Read the passage carefully and answer questions 1 to 5. Answer each question in a maximum of 10 words. Remember to write the answers on the answer sheet Would you like to orbit the Earth inside the International Space Station? Now you can take a space holiday—for a price. This is due to a recent decision by top space officials of the United States, Russia, Canada, Japan and the European Space Agency. Last April, American businessman Dennis Tito reportedly paid between twelve-million and twenty-million dollars to spend one week on the International Space Station. NASA had strongly objected to the Russian plan to permit a civilian on the costly research vehicle. After two years of negotiations, space officials have agreed on a process to train private citizens to take trips to the International Space Station. NASA recently agreed to conditions that will permit Russia to sell trips to the space station. The trips are planned by an American company called Space Adventures Limited of Arlington, Virginia. The company calls itself “the world’s leading space tourism company.” The company has sold a space trip to Mark Shuttleworth, a South African businessman. In April, Mister Shuttleworth will be launched into space from the Baikonur Cosmodrome in Kazakhstan. Yet, the average citizen will not be able to travel into space in the near future. Space Adventures Limited sells a training program for space flight that costs two-hundred-thousand dollars. That price does not include the cost of the trip to the International Space Station. That holiday in space costs twenty-million dollars. Candidates for adventure space travel trips must be in excellent health and must pass difficult health tests. They must receive a lot of training and all successful candidates who wish to travel to the International Space Station must be able to read and speak English. Questions: 1．How much did American businessman Dennis Tito pay to spend one week on the International Space Station? 2．Why Mark Shuttleworth, a South African businessman, is mentioned in the passage? 3．What was NASA’s original attitude towards the Russian plan to permit a civilian on the International Space Station? 4．How much should one pay for a trip to the International Space Station? 5．According to the last paragraph, what conditions must a candidate of space travel meet?
单选题Which statement describes the information returned by the DBMS_SPACE.SPACE_USAGE procedure for LOB space usage？（）A It returns space usage of only BasicFile LOB chunks.B It returns space usage of only SecureFile LOB chunks.C It returns both BasicFile and SecureFile LOB space usage for only nonpartitioned tables.D It returns both BasicFile and SecureFile LOB space usage for both partitioned and nonpartitioned tables.
多选题Evaluate the following command and its output： SQLSELECT * FROM dba_temp_free_space； TABLESPACE_NAME TABLESPACE_SIZE ALLOCATED_SPACE FREE_SPACE LMTEMP 250609664 101048576 149561088 Which two statements correctly interpret the output？（）AFREE_SPACE indicates only the space that is currently unallocated.BALLOCATED_SPACE indicates only the space currently allocated and in use.CFREE_SPACE indicates only the space that is currently allocated and available for reuse.DALLOCATED_SPACE indicates both the space currently allocated and used，and the space that is available for reuse.EFREE_SPACE indicates both the space that is currently allocated and available for reuse，and the space that is currently unallocated.
单选题A customer has an IBM System Storage DS8100 with 128 DDMs and needs to add additional capacity. What must be verified by the Business Partner during the visit to the computer room（）Athe space for the upgrade to a DS8700Bthe space on the left of the DS8000 for an expansion frameCthe space on the right of the DS8000 for an expansion frameDthe space to install additional DDMs in the base frame