问题 选择题

最新的研究表明:一氧化氮吸入治疗法可快速改善SARS中重症患者的缺氧状况,缓解病情。病毒学研究证实,一氧化氮对SARS病毒有直接抑制作用。下列关于一氧化氮的叙述正确的是

A.一氧化氮是一种红棕色的气体

B.常温常压下,一氧化氮不能与空气中的氧气直接化合

C.一氧化氮易溶于水,不能用排水法收集

D.一氧化氮可以由氮气和氧气在放电条件下直接化合得到

答案

答案:D

阅读理解

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余项。

What is your favorite color? Do you like yellow, orange, and red?  71  Do you prefer grays and blues? Then you are probably quiet, shy, and you would rather follow than lead. You tend to be a pessimist(悲观者). At least, this is what psychologists(心理专家) tell us, and they should know, because they have been seriously studying the meaning of colors preference, as well as the effect that colors have on human beings.   72 If you happen to love brown, you did so, as soon as you opened your eyes, or at least as soon as you could see clearly.

 73  A yellow room makes most people feel more cheerful and more relaxed than a dark green one; and a red dress brings warmth and cheer to the saddest winter day.  74  A black bridge over the Thames River, near London, used to be the scene of more suicides than any other bridge in the area ---until it was repainted green. The number of suicide attempts immediately fell sharply; perhaps it would have fallen even more if the bridge had been done in pink or baby blue.

  75 It is an established fact that factory workers work better, harder, and have fewer accidents when their machines are painted orange rather than black or grey.

A.On the other hand, black is depressing.

B.They tells us that we do not choose our favorite color as we grow up——we are born

with our preference.

C.The rooms are painted in different colors as you like.

D.If you do, you must be an optimist(乐观者), a leader, an active person who enjoys life, people and excitement.

E. Light and bright colors make people not only happier but more active.

F. Life is like a picture or a poem, full of different colors.

G. Colors do influence our moods——there is no doubt about it .

多项选择题