问题 填空题

上海的发展日新月异,有着“世博专线”之称的上海城市轨道交通十三号线全长约5000米,将于2010年世博会前投入使用。若一辆地铁列车全程运行约需250秒,则该车的速度为_________米/秒。以列车为参照物,坐在车中的乘客是__________的(选填“静止”或“运动”)。列车在水平轨道上匀速前进时,列车的机械能___________(选填“减少”、“不变”或“增加”)。

答案

20,静止,不变

单项选择题

At some time in your life you may have a p desire to do something strange or terrible. However, chances are that you don’t act on your impulse, but let it pass instead. You know that to commit the action is wrong in some way and that other people will not accept your behavior.
Perhaps the most interesting thing about the phenomenon of the behavior is how it can change over the years within the same society, how certain behavior and attitudes once considered taboo can become perfectly acceptable and natural at another point in time. Topics such as death, for example, were once considered so upsetting and unpleasant that it was a taboo to even tall about them. Now with the publication of important books such as "On Death and Dying" and "Learning to Say Goodbye", people have become more aware of the importance of expressing feelings about death and, as a result, are more willing to talk about this taboo subject.
One of the newest taboos in American society is the topic of fat. Unlike many other taboos, fat is a topic that Americans tall about constantly. It’s not taboo to tall about fat; it’s taboo to be fat. The "thin" look is thin, not fat.
In the work world, most companies prefer youthful-looking, trim executives to sell their image as well as their products to the public. The thin look is associated with youth, vigor and success. The fat person, on the other hand, is thought of as lazy and lacking in energy, self- respect. After all, people think, how can people who care about themselves, and therefore the way they look, permit themselves to become fat In an image-conscious society like the U.S., thin is "in", fat is "out".

In the last sentence of the passage, the phrase "image-conscious society" can be replaced by ______.

A. very imaginative society with nice appearance
B. fast-developing society which is built on a clear image
C. the society whose image has been mined because of money
D. the society in which image has been attached importance to

问答题 简答题