() is to get the materials and services from a company.A、OrderingB、ProcurementC、PurchasingD、Application
() is to get the materials and services from a company.
- A、Ordering
- B、Procurement
- C、Purchasing
- D、Application
相关考题:
Numerous materials are available to (). A.today of designersB.today’s designersC.today’s of designersD.today designers
It's really hard for us to ( )all poisonous gases. A. get rid to;B. get rid ofC. get the ridD. give rid of
– Can I help you to get it down? – ( ). A、No problemB、Yes. Let's get itC、Thanks. It's so nice of youD、It's no trouble at all
When did women begin leaving their homes to get jobs in the U.S.?_________________________________________________
Does modern logistics mean transportation and delivery?()Modern logistics is more about effective and efficient flow of materials and information.A、 Yes, you’re rightB、 No, it’s not the whole storyC、 No, you' re wrong
Numerous materials are available to ______. Atoday of designersBtoday’s of designersCtoday’s designersDtoday designers
includeiostream.hvoid main(){int n;cinn;cin.get();char s[n];cin.getline(s,n);coutsendl;delete s;}
Deviation in a compass is caused by the ______.A.vessel’s geographic positionB.vessel’s headingC.earth’s magnetic fieldD.influence of the magnetic materials of the vessel
Which of the following materials is not appropriate for a teacher to use in listening practice?A.Materials with different dialects.B.Comprehensible authentic materials.C.Materials with comprehensible new words for students.D.Materials with contents beyond students’ comprehension capacity.
共用题干New Understanding of Natural Silk's MysteriesNatural silk,as we all know,has a strength that man-made materials have long struggled to match.In a discovery that sounds more like an ancient Chinese proverb than a materials science breakthrough,MIT re- searchers have discovered that silk gets its strength from its weakness.Or,more specifically,its many weak- nesses. Silk gets its extraordinary durability and ductility(柔韧性)from an unusual arrangement of hydrogen bonds that are intrinsically very weak but that work together to create a strong,flexible structure.Most materials一especially the ones we engineer for strength一get their toughness from brittleness.As such,natural silks like those produced by spiders have long fascinated both biologists and engineers because of their light weight,ductility and high strength(pound for pound,silk is stronger than steel and far less brittle). But on its face,it doesn't seem that silks should be as strong as they are;molecularly,they are held together by hydrogen bonds , which are far weaker than the covalent(共价的)bonds found in other molecules.To get a better understanding of how silk manages to produce such strength through such weak bonds, the MIT team created a set of computer models that allowed them to observe the way silk behaves at the atomic level. They found that the arrangement of the tiny silk nanocrystals(纳米晶体)is such that the hydro- gen bonds are able to work cooperatively,reinforcing one another against external forces and failing slowlywhen they do fail,so as not to allow a sudden fracture to spread across a silk structure.The result is natural silks that can stretch and bend while retaining a high degree of strength.But while that's all well and good for spiders,bees and the like,this understanding of silk geometry could lead to new materials that are stronger and more ductile than those we can currently manufacture.Our best and strongest materials are generally expensive and difficult to produce(requiring high temperature treatments or energy-intensive processes).By looking to silk as a model,researchers could potentially devise new manufacturing methods that rely on inexpensive materials and weak bonds to create less rigid,more forgiving materials that are nonetheless stronger than anything currently on offer. And if you thought you were going to get out of this materials science story without hearing about carbon nanotubes(纳米碳管), think again. The MIT team is already in the lab looking into ways of synthesizing silk-like structures out of materials that are stronger than natural silk-like carbon nanotubes. Super-silks are on the horizon.If the hydrogen bonds break due to external forces,they break fast.A:RightB:WrongC:Not mentioned
共用题干New Understanding of Natural Silk's MysteriesNatural silk,as we all know,has a strength that man-made materials have long struggled to match.In a discovery that sounds more like an ancient Chinese proverb than a materials science breakthrough,MIT re- searchers have discovered that silk gets its strength from its weakness.Or,more specifically,its many weak- nesses. Silk gets its extraordinary durability and ductility(柔韧性)from an unusual arrangement of hydrogen bonds that are intrinsically very weak but that work together to create a strong,flexible structure.Most materials一especially the ones we engineer for strength一get their toughness from brittleness.As such,natural silks like those produced by spiders have long fascinated both biologists and engineers because of their light weight,ductility and high strength(pound for pound,silk is stronger than steel and far less brittle). But on its face,it doesn't seem that silks should be as strong as they are;molecularly,they are held together by hydrogen bonds , which are far weaker than the covalent(共价的)bonds found in other molecules.To get a better understanding of how silk manages to produce such strength through such weak bonds, the MIT team created a set of computer models that allowed them to observe the way silk behaves at the atomic level. They found that the arrangement of the tiny silk nanocrystals(纳米晶体)is such that the hydro- gen bonds are able to work cooperatively,reinforcing one another against external forces and failing slowlywhen they do fail,so as not to allow a sudden fracture to spread across a silk structure.The result is natural silks that can stretch and bend while retaining a high degree of strength.But while that's all well and good for spiders,bees and the like,this understanding of silk geometry could lead to new materials that are stronger and more ductile than those we can currently manufacture.Our best and strongest materials are generally expensive and difficult to produce(requiring high temperature treatments or energy-intensive processes).By looking to silk as a model,researchers could potentially devise new manufacturing methods that rely on inexpensive materials and weak bonds to create less rigid,more forgiving materials that are nonetheless stronger than anything currently on offer. And if you thought you were going to get out of this materials science story without hearing about carbon nanotubes(纳米碳管), think again. The MIT team is already in the lab looking into ways of synthesizing silk-like structures out of materials that are stronger than natural silk-like carbon nanotubes. Super-silks are on the horizon.It is indicated that materials stronger than natural silk can be expected in the future.A:RightB:WrongC:Not mentioned
共用题干New Understanding of Natural Silk's MysteriesNatural silk,as we all know,has a strength that man-made materials have long struggled to match.In a discovery that sounds more like an ancient Chinese proverb than a materials science breakthrough,MIT re- searchers have discovered that silk gets its strength from its weakness.Or,more specifically,its many weak- nesses. Silk gets its extraordinary durability and ductility(柔韧性)from an unusual arrangement of hydrogen bonds that are intrinsically very weak but that work together to create a strong,flexible structure.Most materials一especially the ones we engineer for strength一get their toughness from brittleness.As such,natural silks like those produced by spiders have long fascinated both biologists and engineers because of their light weight,ductility and high strength(pound for pound,silk is stronger than steel and far less brittle). But on its face,it doesn't seem that silks should be as strong as they are;molecularly,they are held together by hydrogen bonds , which are far weaker than the covalent(共价的)bonds found in other molecules.To get a better understanding of how silk manages to produce such strength through such weak bonds, the MIT team created a set of computer models that allowed them to observe the way silk behaves at the atomic level. They found that the arrangement of the tiny silk nanocrystals(纳米晶体)is such that the hydro- gen bonds are able to work cooperatively,reinforcing one another against external forces and failing slowlywhen they do fail,so as not to allow a sudden fracture to spread across a silk structure.The result is natural silks that can stretch and bend while retaining a high degree of strength.But while that's all well and good for spiders,bees and the like,this understanding of silk geometry could lead to new materials that are stronger and more ductile than those we can currently manufacture.Our best and strongest materials are generally expensive and difficult to produce(requiring high temperature treatments or energy-intensive processes).By looking to silk as a model,researchers could potentially devise new manufacturing methods that rely on inexpensive materials and weak bonds to create less rigid,more forgiving materials that are nonetheless stronger than anything currently on offer. And if you thought you were going to get out of this materials science story without hearing about carbon nanotubes(纳米碳管), think again. The MIT team is already in the lab looking into ways of synthesizing silk-like structures out of materials that are stronger than natural silk-like carbon nanotubes. Super-silks are on the horizon.Silk's strength comes from its weak hydrogen bonds working together.A:RightB:WrongC:Not mentioned
— Can I help you to get it down? — ()ANo problemBYes. Let’s get itCThanks. It’s so nice of youDIt’s no trouble at all
语句()能正确完成赋字符串的功能。A、chars[4];s[0]=“string”B、char*s;get(s)C、char*s[]=“string”D、char*s;strcpy(s,“string”)
单选题Deviation in a compass is caused by the().Avessel's geographic positionBvessel's headingCearth's magnetic fieldDinfluence of the magnetic materials of the vessel
单选题I'm getting tired----it's time_______.Awe got some restBwe get some restCwe are getting some restDwe must get some rest
单选题— Can I help you to get it down? — ()ANo problemBYes. Let’s get itCThanks. It’s so nice of youDIt’s no trouble at all
单选题The expenses for the loading of trucks and heavy cargo and the necessary materials for lashing thereof will be charged to()account.Athe supercargo'sBthe shipper'sCthe shipowner'sDcarrier's
单选题By saying “raw materials do not exist, they are created” the author means _____.Athat there will be no more raw materials on the earth some time later, and man will have to create materials by themselvesBthat it is use that makes raw materials valuableCthat people have created various useful materials by using their intelligence and wisdomDhuman creativity is amazing
单选题Which of the following statements is INCORRECT?AGenerally speaking, almost all of the clerks get along well with their colleagues.BIt’s impossible to oppress one’s bad temper while being passionate on one’s work.CPeople tend to get angry at work in many situations.DPeople in companies welcome rage.
单选题A note in the pocket can hardly serve as a reminder because _____.Ait will easily get lostBit’s not clear enough for you to readCit’s out of your sightDit might get mixed up with other things
单选题_____AHe’s trying to get out of the window.BHe’s helping Freud.CHe’s breaking into a house.DHe’s leaving by the front door.
单选题Those who regard natural resources as stacks of raw materials piled up in a storehouse believe that _____.Athe earth’s natural resources will one day be exhaustedBthe earth’s natural resources will not run out since there are numerous storehousesCthe stacks of raw materials can always be renewedDthe stacks of raw materials should be used in a logical way
单选题The watches and the the camera materials were not stowed in the poop cabin. They were stowed in the chief officer’s cabin().AinsteadBinstead ofCreplaceDreplace of