题目内容
（请给出正确答案）
What made it possible for Mark to be found on die buoy？
A．John told people where to look for him.
B．John radioed to the Good Hope to get him.
C．He shouted when he caught sight of the Good Hope.
D．The captain saw him as the fog cleare
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更多“What made it possible for Mark to be found on die buoy？A．John told people where to look fo”相关的问题
A.It’s reasonable .
B.It’s possibl
C.It’s pleasant.
A.It’s possibl
B.It’s reasonable .
C.It’s pleasant.
A.Revise the draft many times.
B.Rehearse as many times as possibl
C.Prepare more than one draft.
D.Perform. the talk more than onc
A．Lexical diversity means many different kinds of words．
B．Lexical diversity means using different expressions for the same or similar meaning．
C．Lexical diversity means employing difficult and challenging words as many as possibl
E．
D．Lexical diversity means preferring difficult words to easy words．
A.It’s not possible to predict the futur
B.Black holes have changed the laws of physics.
C.Time travel may one day be possibl
D.We now know Einstein was right about everythin
E.
A．Listening language programs on the radio．
B．Trying to speak it as much as one can．
C．Making friends with native speakers．
D．Practicing reading aloud as often as possibl
E．
A.A.He could work as hard as possibl
B.B.He could go to work on tim
C.C.He should never fail to go to work.
D.D.He should be respectful and loyal to the people he works for.
What can be inferred about Cross's idea of parenting？
A．Fathers should be their children's friends.
B．Fathers should be strict with their children.
C．Fathers should be too strict with their children.
D．Fathers should show their love to their children as much as possibl
What is the main topic of this news？
A．How to ensure safe navigation at night.
B．The possible reasons for greenhouse effect and the solutions.
C．How to use the Sun"s rays to help flights.
D．Negative effects of the nighttime flight on the environment.
Why did Meyer initiate the debate between him and Woese as he claimed？
A．To make it possible the alternative use of the vocabulary of science.
B．To reconcile what appear to be two contradictory scientific views.
C．To claim victory for the views which are so significant.
D．To establish the soundness of a discussion that's been long suppressed.
This unusual vehicle is the Racoon. It is an invention not of Hollywood but of Renault, a rather conservative French state-owned carmaker, better known for its family hatchbacks. Renault built the Racoon to explore new freedoms for designers and engineers created by advances in materials and manufacturing processes. Renault is thinking about startlingly different cars; other producers have radical new ideas for trains, boats and aeroplanes.
The first of the new freedoms is in design. Powerful computer-aided design (CAD) systems can replace with a click of a computer mouse hours of laborious work done on thousands of drawing boards. So new products, no matter how complicated, can be developed much faster. For the first time, Boeing will not have to build a giant replica of its new airliner, the 777, to make sure all the bits fit together. Its CAD system will take care of that.
But Renault is taking CAD further. It claims the Racoon is the world's first vehicle to be designed within the digitised world of virtual reality. Complex programs were used to simulate the vehicle and the terrain that it was expected to cross. This allowed a team led by Patrick Le Quement, Renault's industrial-design director, to "drive" it long before a prototype existed.
Renault is not alone in thinking that virtual reality will transform. automotive design. In Detroit, Ford is also investigating its potential. Jack Telnac, the firm's head of design, would like designers in different parts of the world to work more closely together, linked by computers. They would do more than style. cars. Virtual reality will allow engineers to peer inside the working parts of a vehicle. Designers will watch bearings move, oil flow, gears mesh and hydraulics pump. As these techniques catch on, even stranger vehicles are likely to come along.
Transforming these creations from virtual reality to actual reality will also become easier, especially with advances in materials. Firms that once bashed everything out of steel now find that new alloys or composite materials (which can be made from mixtures of plastic, resin, ceramics and metals, reinforced with fibers such as glass or carbon) are changing the rules of manufacturing. At the same time, old materials keep getting better, as their producers try to secure their place in the factory of the future. This competition is increasing the pace of development of all materials.
One company in this field scaled composites. It was started in 1982 by Burt Rutan, an aviator who has devised many unusual aircraft. His company develops and tests prototypes that have ranged from business aircraft to air racers. It has also worked on composite sails for the America's Cup yacht race and on General Motors' Ultralite, a 100-miles-per-gallon experimental family car built from carbon fiber.
Again, the Racoon reflects this race between the old and the new. It uses conventional steel and what Renault describes as a new "high-limit elastic steel" in its chassis. This steel is 30% lighter than the usual kind. The Racoon also has parts made from compostites. Renault plans to replace the petrol engine with a small gas turbine, which could be made from heat-resisting ceramics, and use it to run a generator that would provide power for electric motors at each wheel.
With composites it is possibl
A．It swims.
B．It raises its nose.
C．It uses hydrojets.
D．It uses its four-wheel drive.
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