单项选择题

在息税前利润不变的条件下,提高资金结构中负债资本的比例,企业净资产利润率也必然提高。( )

A.正确
B.错误

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?Read the article below about brand-name prescription drugs, and the questions on the opposite pagE.?For each question 13--18, mark one letter (A, B, C, or D) on your Answer Sheet for the answer you choosE.Brand-Name Prescription DrugsYou're in trouble if you have to buy your own brand-name prescription drugs. Over the past decade, prices leaped by more than double the inflation ratE.Treatments for chronic conditions can easily top ＄2,000 a month--no wonder that one in four Americans can't afford to fill their prescriptions. The solution? A hearty chorus of '0 Canada'. North of the border, where price controls reign, those same brand-name drugs cost 50% to 80% less.The Canadian option is fast becoming a political wake-up call, 'If our neighbors can buy drugs at reasonable prices, why can't we?' Even to whisper that thought provokes anger. 'Un-American!' And--the propagandists' trump card--'Wreck our brilliant health-care system.' Super-size drug prices, they claim, fund the research that sparks the next generation of wonder drugs. No sky-high drug price today, no cure for cancer tomorrow. So shut up and pay up. Common sense tells you that's a false alternativE.The reward for finding. Say, a cancer cure is so huge that no one's going to hang it up. Nevertheless, if Canada-level pricing came to the United States, the industry's profit margins would drop and the pace of new-drug development would slow. Here lies the American dilemmA.Who is all this splendid medicine for? Should our health-care system continue its drive toward the best of the best, even though rising numbers of patients can't afford it? Or should we direct our wealth toward letting everyone in on today's level of care? Measured by saved lives, the latter is almost certainly the better coursE.To defend their profits, the drug companies have warned Canadian wholesalers and pharmacies not to sell to Americans by mail, and are cutting back supplies to those who darE.Meanwhile, the administration is playing the fear carD.Officials from the Food and Drug Administration will argue that Canadian drugs might be fake, mishandled, or even a potential threat to lifE.Do bad drugs fly around the Internet? Sure--and the more we look, the more we'll finD.But I haven't heard of any raging epidemics among the hundreds of thousands of people buying cross-border. Most users of prescription drugs don't worry about costs a lot. They're sheltered by employee insurance, owing just a ＄ 20 co-pay. The financial blows rain, instead, on the uninsured, especially the chronically ill who need expensive drugs to live, This group will still include middle-income seniors on Medicare, who'll have to dig deeply into their pockets before getting much from the new drug benefit that starts in 2006.What is said about the consequence of the rocketing drug prices in the U. S?A.A quarter of Americans can't afford their prescription drugs.B.Many Americans can't afford to see a doctor when they fall ill.C.Many Americans have to go to Canada to get medical treatment.D.The inflation rate has been more than doubled over the years.

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SECTION A CONVERSATIONSDirections: In this section you will hear several conversations. Listen to the conversations carefully and then answer the questions that follow.听力原文：S: I'm sorry. I just don't agree with you at all.P: Look. Take the example of an international student applying for university admission. If the student has a 500 on the TOEFL or an 80 on the Michigan Test, most admissions officers will accept the applicant. The student with a 499 or 79 won't be considereD.The officer won't even look at transcripts.S: Right. But I think that proves my point, not yours.P: How?S: Well, it's the admissions officer who decides how to use the test. The TOEFL and the Michigan are good English proficiency tests, but that's all they arE.And English proficiency is necessary for success in an American university, but so are several other factors, including good academic preparation.P: Good academic preparation is more important.S: MaybE.I don't really know. But what I'm trying to explain to you is that admissions officers should use the proficiency test as one of many considerations, and as such, they really shouldn't insist on a rigid cut - off score like 500 or 80.A: Isn't this the basic disagreement that Paul thinks the tests are bad in themselves, and Sally believes that the tests are good, but that many people don't use them for their intended purposE.P: I don't agree with having the tests, Professor Ayers, and that's my position.S: But Pat, what would you do' to evaluate the English proficiency of a student ten thousand miles away without a standardized test?P: I admit that's a big problem.S: It sure is.A: Okay, class, for wednesday, let's consider the problem of evaluation without standardized tests like the TOEFL, the SAT, GMAT, and GRE.Paul says that there ought to be an alternativE.Sally doesn't seem to believe that there is an appropriate alternativE.Please bring in your ideas and suggestions, and we'll discuss them.What do the speakers mainly discuss?A.Admission standards at the University of Michigan.B.The use of standardized tests for college admissions.C.The TOEFL (Test of English as a Foreign Language).D.Evaluation without standardized tests.

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