Dumb rabbit. Here dumb means( ).

A . 正确 B . 错误

A . A、5.0% B . B、2.6% C . C、1.5% D . D、2.0%

A . A、17％～18％ B . B、27％～28％ C . C、10％ D . D、30％

A . A、170 B . B、180 C . C、150 D . D、200

A . A、MEA采用高压操作下气相损失更大 B . B、MEA采用低压操作气相损失更大 C . C、MEA的气相损失与操作压力无关 D . D、如果压力升高，MEA的气相损失先增大后减小

A . 正确 B . 错误

A . A、0.1 B . B、0.3 C . C、0.5 D . D、0.7

A . 正确 B . 错误

A . E-1004入口 B . E-1004出口 C . V-1001水包 D . V-1002水包

W: I know what you mean. There's so much to find out about in so many different ways nowadays. We have television, we have radio, and we have all sorts of magazines. M: Even in your own field, you know, you'd have to read twenty or thirty magazines a month in order to keep up. W: Just to know what's happening. M: Yeah. That's right. W: You know, now, because of communication systems, uh, our sphere of interest is the whole world, whereas before, our sphere of interest was just our country or our area. M: Yeah, yeah, that's right. W: I think we realize now that we should know things. And therefore, we are pressed to know these things. M: Yes, we're..., whereas before people didn't understand that... W: And as an educated adult you also have to keep up with certain international events and affairs, or you cannot really be a responsible person. M: Yeah, you know you're responsible for making decisions about not only your own life, but many other things and you have to be informed to be able to do that. W: You have to learn to pick and choose information too. Why does the man feel dumb？ A．He can't process all the information available. B．There is so much he doesn't know. C．There is so much he hasn't read. D．All of the above.

At my high school, everyone had a group; no one was an individual. Wait, I take that back. There were a few individuals, but they were completely outcast from our social order. Never in my life can I remember stronger feelings of hate in high school. But we never called it hate. We called it loyalty. As adults, most of us are better at being an individual than we were in high school, but the influences of group identity continue to promote competition and prejudice in our world. If you are like me, you want to avoid teaching rivalry, conflict and prejudice to your children. One possible strategy for stopping the negative influences of group identity would be: recognize and replay. Look for the prejudice in your life and replace it with charity. Treat every person as an individual and ignore the social classifications created by a group-dependent world. A good friend and I once discussed our differing religions beliefs. He identified with a certain group and I with another. Because of our dependence on group identity, our conversations revolved around the beliefs of the groups. Our individual beliefs, which were quite similar, took a back seat while we discussed topics we knew little about. We defended our groups even when we did not understand or know the official group position on many issues. The resulting rivalry has damaged our friendship ever since. My behavior. in this situation is exactly what scripture and wisdom teach us to avoid. How stupid I was to judge my friend by a group standard! How stupid I was to defend my own group even in areas I knew nothing about! I hope I can teach my children to behave differently. Here, I have used religious beliefs to point only one area in which the influence of group identity can create problems. There are many others to consider also. Some of these are marriage, race, culture, language, geographic origin, education, and behavior. We should treat all people as individuals regardless of these conditions. Finally, loyalty and group identity are not always bad. At times, they can help a lonely person to feel loved or a broken soul to feel success. Group identity can also help us to live a higher standard. But positive peer pressure should never replace individual, one-to-one acts of service and love. According to the article, ______came along with group identity. A．rivalry B．prejudice C．conflicts D．all of the above

(hold)______the note in his hand, the fellow stood there dumb-founded.

A．Kurt Vonnegut B．Joyce Carol Oates C．John Updike D．Jerome David Salinger

A、to B、against C、with D、for

A．it is unwise trying to have beauty by taking plastic surgeries B．plastic surgery or no plastic surgery, everyone will get old C．to keep beauty, you have to take plastic surgeries again and again D．beauty cannot cover up foolishness

Hares and Rabbits One of the gentlest of all animals is the hare. When you consider how mild this animal is, you might wonder how it can survive in a world full of enemies. But then you've also probably noticed its strong hind（后面的）legs. Those legs give it plenty of speed. And you know how rapidly hares and rabbits breed（繁殖）. That’s another reason why they manage to survive. Hares and rabbits have long, sharp front teeth. Their hind legs are longer than their front legs so that they run faster uphill than downhill. When they are hunted, they use tricks such as taking huge leaps to break the smell or signal danger to each other by hitting the ground with their hind feet. Hares and rabbits are purely vegetarians（素食者）. They can live very well on the inner bark f trees. There are many differences between hares and rabbits. Hares are larger, and their feet and ears are longer. Hares do not dig holes or live in groups, as do rabbits. Hares are born pen-eyed and with thick fur, while rabbits are born blind and hairless. North America is the home of many different types of hares. One of the best known is the jack hare, a large hare with very long ears. Jacks are so fast that they can sometimes make a leap of six meters. The March hare, whom we know from Alice in Wonderland, is a common European hare. In March, they are always busy in mating, thus acquiring its name. Unlike hares, rabbits are social animals, living together in holes. A rabbit may mate when it is six months old and its young are born within a month. So if the rabbit has no natural enemies, it can become quite a pest. People are curious about the survival of the hare because_____.A.their legs are not strong enough B.their growth is not fast enough C.they are too gentle D.they run too slow Hares and rabbits use tricks when they_____.A.run uphill B.are hunted C.signal danger D.take huge leaps Rabbits' natural enemies prevent them from_____.A.becoming a big trouble B.breeding when young C.living in holes D.becoming social animals Compared with hares, rabbits_____.A.have longer feet B.have thicker fur C.are born pen-eyed D.like to live in groups Many people get to know the March hare from the fact that it_____.A.has long ears and legs B.digs a lot of holes in March C.can make a leap of six meters D.appears in Alice in Wonderland

A．It talked to her B．It went down a hole C．It wore clothes and had a pocket watch D．It ran away

A．temperature-sensitive allele B．dominance C．discontinuous characteristic D．genetic imprinting E．phenocopy