题目内容
（请给出正确答案）
[主观题]
What makes the space shuttle ______ is that it takes off like a rocket but lands like an a
irplane.
A．exceptional
B．strange
C．unique
D．rare
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题目内容
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题目内容
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A．exceptional
B．strange
C．unique
D．rare
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更多“What makes the space shuttle _…”相关的问题
The marvel of the machine age, the electronic computer has been in use only since 1946. It can do simple computations—add, subtract, multiply, and divide—with lightning speed and perfect accuracy. It can multiply two 10-digit numbers in 1/1, 000 second, a problem that would take an average person five minutes to do with pencil and paper. Some computers can work 500, 000 times faster than any person can.
Once it is given a program, that is, a carefully worked-out set of instructions devised by a technician trained in computer language, a computer can gather a wide range of information for many purposes. For the scientist it can get information from outer space or from the depths of the ocean. In business and industry the computer prepares factory inventories, keeps track of sales trends and production needs, mails dividend checks, and makes out company payrolls. It can keep bank accounts up to date and make out electric bills. If you are planning a trip by plane, the computer will find out what route to take and what space is available.
Why does the author regard the electronic computer as the marvel of the machine age？
A．Because electronic computers are rare.
B．Because people know little about electronic computers.
C．Because electronic computers can do much more kinds of work that human beings can't.
D．Because electronic computers have been widely suspected.
Passage Three
Questions 31 to 35 are based on the following passage.
The physicist investigating the relationship between time and space, the chemist exploring the properties of a new substance, the biologist probing the mysteries of the continuity of life. and the anthropologist(人类学家)searching for human origins share a common trait(特征), curiosity. Not that nonscientist are not curious；most people possess this characteristic. The scientist, however, uses a specific method to make researches into these enigmatic(难以理解的)problems-the scientific method.
Unfortunately, science and its method are misunderstood, the multiplication of our knowledge in medicine and technology has led to the idea that science can cure all and explain all and that only enough time, money and intelligence are needed. In truth. science cannot provide all answers. In fact, many phenomena are not even subject to scientific explanations.
On the other side of the coin, science has been attacked as a cause of most contemporary problems. It is said to be responsible for the depersonalization(使失去个性)of the individual, for stripping(夺去)creativity from human behavior, and for creating massive threats to the species through the development of nuclear power, insecticides, and polluting machinery. If we analyze the situation, we can see that it was not the original intent of the people who developed computers to debase humankind, nor was mass production proposed as a method to crush creativity. It is what society, policymakers especially, does with scientific achievements that makes them social or antisocial. There is nothing inherently good or bad about science.
Which of the following is the main topic of the passage？
A. Scientists and their curiosity.
B. Science and scientific method.
C. Understandings of science.
D. Misunderstandings of science.
What makes rain fall？
A．Air currents' movement.
B．The earth gravity.
C．Droplets' movement
D．The size of the droplets
A. make, think
B. makes, think
C. makes, to think
D. make, thinking
What makes Cog special？
A．It looks 1ike a mother．
B．It behaves 1ike a child．
C．It can imitate血e behavior. of a mother
D．It has a huge brain
What is the main idea of this passage？
A.The price of Beijing's office space rises higher
B.Different costs of office space all over the world
C.The cost of Beijing's office space ranks the top
D.Air pollution doesn't influence Beijing's office space
The model has shown that this radar system, known as laser-doppler radar, can measure with absolute precision speeds varying from spaceship orbital injection (进入) velocities (速度) of five miles per second down to virtual stops--speeds of less than one ten thousandth of an inch per second. According to the scientists who are developing this system, such fine measures of velocity are of prime importance in space missions. In a rendezvous (对接) between two spaceships, or in a landing approach by a vehicle onto an orbiting space station, a bump could rip open a ship's skin, or a nudge could knock the station out of its orbit.
The light-beam radar, which operates at a frequency of trillions (百万兆) of cycles per second, could easily detect and measure the movement of a vehicle edging up to a satellite space station. A control system using so precise a signal as this would allow a huge vehicle to dock at a space station as lightly as a feather.
Laser-doppler radar ______. ()
A．measures the movements of a spaceship by means of light beam
B．makes use of microwaves
C．makes use of sound waves
D．Both A and B
A.Believe it or not
B.That is to say
C.On the one hand
D.What makes it
A.what it is
B.why it is
C.why it does
D.what it does
