更多"Why have the Americans developed sp"的相关试题:
[单项选择]Why have the Americans developed space shuttle according to the passage
A. It is a first step to explore outer space.
B. It is a follow-up action of the Apollo moon landings.
C. It is a compromise to the exorbitant human expeditions to the Mars.
D. It is a compensation for the wishful thinking of human landing on the Mars.
[单项选择]Why did NASA decide to bring the shuttle home earlier
A. The laboratory was closed.
B. The generator was turned off.
C. The power generator might explode.
D. Electricity was going to run out.
[判断题]Cumulative preference shares have the right to accumulate dividends in a given year if they are in arrears.
[单项选择]PASSAGE THREE
You may have wondered why the supermarkets are all the same. It is not because the companies that them lack imagination. It is because they all aim at persuading people to buy things.
In the supermarket, it takes a while for the mind to get into a shopping mode. This is why the area immediately inside the entrance is known as the “decompression zone ”. People need to slow down and look around, even if they are regulars. In sales terms this area is a bit of a loss, so it tends to be used more for promotion.
Immediately inside the first thing shoppers may come to is the fresh fruit and vegetables section.For shoppers, this makes no sense. Fruit and Vegetables can be easily damaged, so they should be bought at the end, not the beginning, of a shopping trip. But what is at work here It turns out that selecting good fresh food is a way to start shopping, and it makes people feel less guilty about reaching for the unhealthy stuff later on.
Shoppers already know that eve
A. offer shoppers a place to have a rest
B. prepare shoppers for the mood of buying
C. encourage shoppers to try new products
D. provide shoppers with discount information
[单项选择]
The first flight of the Space Shuttle Columbia in the spring of 1981 was a revolutionary development in space exploration. Unlike the rockets of the previous twenty years, Columbia has the enormous advantages of being specially designed to return to earth and make further flights. Among a large number of projects scientists are investigating its future use. The most exciting, perhaps, is that the first steps can now be taken towards establishing human colonies in space. The present Space Shuttle can only stay in space for about a week, but it could take people out to build "islands" where they stay for longer periods. By the year 2050 scientists estimate that man will be able to construct permanent settlements.
The first "islands" would be energy stations. There would be no hope of establishing colonies in space unless people could obtain energy there, instead of getting it from the earth. However, if the original could convert solar energy into electr
A. It was the first rocket ever made in history.
B. It did the first flight in 1981.
C. Its first flight was of great importance in the development of space exploration.
D. It can only stay in space for about a week now.
[填空题] Many cultures have different ideas about why people catch colds. For Example, in the United States, some people think that you catch cold if your (11) get cold. So, mothers tell small children to wear (12) boots(靴子) in the winter. In other places, including parts of the Middle East, some people believe that strong winds cause cold. So, on trains and buses, people usually don’’t like to sit (13) to open windows. In parts of Europe, some people think that wearing wet clothes will give you a cold. They say that after you go (14), you should quickly put on dry clothes. Today scientists know that colds are caused by viruses(病毒). But the old ideas are still very strong, and many people still follow them to (15) getting ill.
