单选题The reason why more and more of the large merchant vessels are being powered by medium-speed diesel engines is （）.Athey operate between 150 and 450 rpmBthey are connected to the propeller by gearingCtheir smaller size and weightDthey can be connected directly to the propeller without gearing
单选题
The reason why more and more of the large merchant vessels are being powered by medium-speed diesel engines is （）.
A
they operate between 150 and 450 rpm
B
they are connected to the propeller by gearing
C
their smaller size and weight
D
they can be connected directly to the propeller without gearing
参考解析
解析：
暂无解析
相关考题：
Why didn't Peter take more money from the bank?A．He was afraid that be would be caught on the spot.B．The maximum sum allowed was ＄5,000.C．He was limited by time and the size of his pockets.D．Large bills were not within his reach.
What does the author want to tell us most? （ ）A．Women' s brains are better organized for language and communicationB．Women love to talk because they are more sociable than men.C．Men do not like talking because they rely more on facts.D．Social conditioning is not the reason why women love talking.
According to the author, the reason why parental divorce has greater effect on boys than on girls is that_____.［A］ all cultures encourage male aggression and noncompliance［B］ boys are always involved in their parents’ fights［C］ males are usually viewed as the models in self-control and strong will［D］ boys are basically more self-disciplined than girls
Would you like another slice of Christmas cake?_________I'm full A.Why not?B.No more,thanksC.Nothing more
there is no reason that they should limit how much vitamin you take ____ they can limit how much water you drink. A. any more thanB. no more thanC. much more thanD. no less than
A SOLAS passenger ship safety certificate is required on all ______.A.T-Boats carrying more than 49 passengers for hireB.T-Boats that carry more than 12 passengers on an international voyageC.T-Boats carrying more than 150 passengers for hireD.large excursion vessels on lakes，bays，sounds，and river routes
There is no reason they should limit how much vitamin you take,____they can limit how much water you drink.A.no less thanB.not any more thanC.no more thanD.much more or less
There is no reason they should limit how much vitamin you take，( )they can limit how much water you drink. A.much more than B.no more than C.no less than D.any more than
Identify three reasons that explain why assigning more than one managed serve achieve better performance than running one managed server with more resources?（）A、Thread management inside the JVM process might be less effective than context switching between processes on the OS level. It is better to combine both these technologies to achieve full saturation of resources.B、Current CPUs are multicore units. So starting managed servers in the amount of physical cores and pinning them 1:1 to cores will always get the best performance.C、By a combination of prioritization of processes on the OS level and Work Manager in WLS, one could tune the whole environment more precisely.D、Assigning more than one managed server to hardware will never bring better performance. E、More instances means more connections to databases, so one could serve more concurrent calls on the database level. This is primarily why this approach will give better performance numbers. F、Depending on the profile of the application, having more JVMs with smaller heaps will lead to more predictable response times than fewer JVMs with a large heap.
单选题What is mentioned as a reason why the world market is being globalised?AThe developing countries can get goods and services from western countries only.BSome western multinationals are eager to reap profits from other countries.CThe developed countries depend more on resources of the developing countries.DThe world is becoming more connected through internet and telecommunications.
单选题Why do workers want more money?ABecause their jobs are too boring.BBecause they want to enjoy more spare time.CBecause they want to make their jobs more interesting.DBecause they want to demand shorter working hours.
单选题Reading a large number of books ______ make us wiser. The more we read, the more we know.AcanBwouldCneed
单选题A vessel with a large GM will（）.Ahave more resistance to listing in case of damageBhave less tendency to have synchronous rollingCbe less likely to have cargo shiftDride more comfortably
单选题The Rules state that vessels may depart from the Rules when（）.Athere are other vessels in the vicinityBoperating in a traffic separation schemeCengaged in a situation involving more than two vesselsDnecessary to avoid immediate danger
单选题One possible reason why women have better memories than men is that _____.Athey have a wider range of interestsBthey are more reliant on the environmentCthey have an unusual power of focusing their attentionDthey are more interested in what’s happening around them
单选题The first reason that the British do not buy snow-ploughs is that ______.Aspreading salt is good enoughBold people need more moneyCsnow-ploughs are not used oftenDthe hospital is more important
单选题A SOLAS passenger ship safety certificate is required on all（）.AT-Boats carrying more than 49 passengers for hireBT-Boats that carry more than 12 passengers on an international voyageCT-Boats carrying more than 150 passengers for hireDlarge excursion vessels on lakes，bays，sounds，and river routes
多选题Identify three reasons that explain why assigning more than one managed serve achieve better performance than running one managed server with more resources?（）AThread management inside the JVM process might be less effective than context switching between processes on the OS level. It is better to combine both these technologies to achieve full saturation of resources.BCurrent CPUs are multicore units. So starting managed servers in the amount of physical cores and pinning them 1:1 to cores will always get the best performance.CBy a combination of prioritization of processes on the OS level and Work Manager in WLS, one could tune the whole environment more precisely.DAssigning more than one managed server to hardware will never bring better performance.EMore instances means more connections to databases, so one could serve more concurrent calls on the database level. This is primarily why this approach will give better performance numbers.FDepending on the profile of the application, having more JVMs with smaller heaps will lead to more predictable response times than fewer JVMs with a large heap.
单选题Required lifesaving equipment on existing vessels may becontinued in use on the vessel if（）.Akept on board no more than 2 yearsBinspected and serviced every 6 monthsCdestroyed if more than 5 years oldDmaintained in good and serviceable condition
单选题Upon receipt of a distress message，a merchant vessel is bound to proceed to the scene of the distress. Under which of the following cases would this NOT be true?（）AThe vessel would arrive at the distress scene more than 36 hours after the receipt of the initial distress messageBThere are vessels closer to the distress scene that are proceeding to assistCThe Master of the vessel in distress has requisitioned another vessel，and that vessel has accepted the requisitionDYou are on a tanker and the distress involves a major fire on board the other vessel
单选题The reason why the writer raises funds for cancer research is that ______.Ashe herself is suffering from cancerBthe cancer is the most frightening diseaseCa number of her relatives died of cancerDsome cancer research needs more money than other research
单选题One reason for quick population increase in underdeveloped countries is that ______.Athose countries encourage people to have large familiesBpeople can get government support if they have more kidsCimproved public health standards have reduced death rate greatlyDthose countries have enough resources to support a large population