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To squeeze the most out of each shining hour we have shortened the opera, quickened the pace of the movie and put culture in pocket-sized packages. We make the busy bee look like a lazy creature, the ant like a sluggard. We live sixty-mile-minute and the great efficiency smiles.
We wish we could return to that pleasant day when we considered time a friend instead of an enemy; when we did things willingly and because we wanted to, rather than because our timetable called for it, But that of course would not be efficiency; and we Americans must be efficient.
The phrase that best expresses the main idea of this passage is ______. ()

A. the modern pace
B. our interest in shortened operas
C. how to make the best use of leisure time
D. planning our time scientifically

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Of course sometimes there were real disasters which attracted the attention of governments and which showed need for changes. Also scientists who were doing research into the health of workers sometimes produced information which governments could not ignore. At such times, there were inquiries into the causes of the disaster or the problems. New safety rules were often introduced as a result of these inquiries; however, the new rule; came too late to protect the people who died or who became seriously ill.
Today many governments have special departments which protect customers and workers. In the U.S., for example, there is a department which tests new airplanes and gives warnings about possible problems. It also makes the rules that aircraft producers must follow. Another department controls the foods and drugs that companies sell. A third department looks at the places where people work, and then reports any companies that are breaking laws which protect the health and safety of workers. Of course, new government departments and new laws cannot prevent every accident or illness, but they are having some good results. Our work places are safer and cleaner than before. The planes and cars which we use for travel are better. Producers are thinking more about the safety and health of the people who buy and use their products.
The main topic of the passage is ______. ()

A. conditions in the work place
B. the freedom of industries in the past
C. changes in industrial production
D. the safety and health of workers and customers

A.He's already helped her a lot.B.She knows he's very busy.C.She doesn't need any help

A. He's already helped her a lot.
B. She knows he's very busy.
C. She doesn't need any help.
D. He doesn't know enough chemistry.

听力原文:W: I haven't seen you here for a couple weeks. Have you stopped eating or something?
M: No. Does it look like l've stopped eating? I've been spending a lot of time in the library.
W: Working on a paper?
M: I wish it was one paper! I'm Working on three different papers anthropology, English literature, and history.
W: Wow! That is a lot of work.
M: Yeah, and what's frustrating is that I'm studying the nineteenth century British Empire in all three classes, but I can't just write a single paper for all three.
W: Why not?
M: The professors won't let me, even if I make it three times as long as the suggested length.
W: That's too bad. Could you write your papers oh three aspects of one topic?
M: Hmmm. What do you mean? Do you have something in mind?
W: Well, let's see. Hmm Maybe you could do something with Romanticism, like. oh... write your anthropology paper on the cultural basis of Romanticism, and, uh, your history paper on the influence of the Romantic poems on British foreign policy, and, OK, and your English lit paper on an analysis of some Romantic poems.
M: That's not a bad idea! I've already stared the research for one of the paper, so 1 can use that. What can 1 do to repay you?
W: You want to write up my chemistry lab for me?
M: I'd love to, but I,ve never taken chemistry, so I'm afraid you won't like the results.
W: Oh well, no thanks necessary then. Have a good weekend. See you later.
M: See you.
(23)

A. Meeting with his professors.
B. Doing extra work in the chemistry lab.
C. Writing papers for his classes.
D. Working overtime as a librarian.

A.She particularly likes Romantic poetry.B.She suggests the man should write about it.

A. She particularly likes Romantic poetry.
B. She suggests the man should write about it.
C. She once wrote a paper about it.
D. She's been studying it recently.

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