单选题Don’t _____ yourself on people who don’t want you.

单选题If you ______ that night, you might have been too late to get your ticket. A. didn't hurry B. hadn't hurried C. wouldn't hurry D. hadn't to hurry

单选题Pan of his general thrift is to be Umeticulous/U in verifying monthly expenses.

单选题We enjoyed ourselves very much last night at the party. You ______ with us.

单选题After the Arab states won independence, great emphasis was laid on expanding education, with girls as well as boys ______ to go to school. A. to be encouraged B. been encouraged C. being encouraged D. be encouraged

单选题Doctor: What seems to be the matter? Patient: Well, my heartbeat is fast and I have trouble breathing recently. Doctor: ______Your weight is giving much burden on your heart. A. I have to give you some medicine. B. I' m sorry. Your weight is a problem. C. You need some exercises. D. I' m afraid you have to lose at least 40 pounds.

单选题Psychologist George Spilich and colleagues at Washington College in Chestertown, Maryland, decided to find out Whether, as many smokers say, smoking helps them to "think and concentrate." Spilich put young non-smokers, active smokers and smokers deprived (被剥夺) of cigarettes through a series of tests. In the first test, each subject (试验对象) sat before a computer screen and pressed a key as soon as he or she recognized a target letter among a grouping of 96. In this simple test, smokers, deprived smokers and nonsmokers performed equally well. The next test was more complex, requiring all to scan sequences of 20 identical letters and respond the instant one of the letters was transformed into a different one. Non-smokers were faster, but under the stimulation of nicotine (尼古丁), active smokers were faster than deprived smokers. In the third test of short-term memory, non-smokers made the fewest errors, but deprived smokers committed fewer errors than active smokers. The fourth test required people to read a passage, then answer questions about it. Non-smokers remembered 19 percent more of the most important information than active smokers, and deprived smokers bested those who had smoked a cigarette just before testing. Active smokers tended not only to have poorer memories but also had trouble separating important information from insignificant details. "As our tests became more complex," sums up Spilich, "non-smokers performed better than smokers by wider and wider margins." He predicts, "smokers might perform adequately at many jobs until they got complicated. A smoking airline pilot could fly adequately if no problems arose, but if something went wrong, smoking might damage his mental capacity./

单选题______food was rotting in the warehouses, the poor did not have enough to eat.

单选题Simon finally ______to pressure from his parents to stop his tennis training before the exam.

单选题The author writes of the experiences of Jim Clark to demonstrate

单选题When people become unemployed, it is ______ which is often worse than lack of wages.

单选题Which question is NOT answered in the article?

单选题Everything I've described went wrong. ______, the whole affair was a disaster.

单选题The degree of downward slope of a beach depends on its composition of deposits as well as on the action of waves across its surface.

单选题Let us learn the lessons already taught by such cruel experience. A. metaphor B. alliteration

单选题Using extremely different decorating schemes in adjoining rooms may result in ______ and lack of unity in style.

单选题They did considerable work to ______the masses of the United States with the elementary problems of Latin Americ