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问题 单项选择题

社会主义市场经济条件下效率与公平的一致性表现在（）

①效率是公平的物质前提

②效率是经济活动中投入与产出的比率

③公平是提高经济效率的保证

④公平主要是指收入分配的公平

A.①②

B.①③

C.②③

D.②④

答案

参考答案：B

单项选择题 A1型题

下列哪种疾病不属于骨髓显像的适应证（）

A.骨髓栓塞

B.股骨头无菌性坏死

C.特发性血小板减少性紫癜

D.恶性淋巴瘤

E.肿瘤骨转移
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单项选择题

Drug use among teens concerns many people in California. Advocates of the "Stop Drugs Now" program, which was piloted in public schools in five California counties last year, argue that the program should be used throughout the state to decrease drug use among teenagers.
Which of the following statements, if true, would most strengthen the argument of the advocates of "Stop Drugs Now" that the program should be expanded statewide ？（）

A. School programs are far less important than parental messages in influencing a teenager’s decision to use drugs.

B. Drug use among teens in the five counties where the "Stop Drugs Now" program was piloted has been dropping steadily for over a decade.

C. Teenagers at the public schools where the "Stop Drugs Now" program was piloted reported higher average levels of drug use than did teenagers at private schools in the same counties where the program was not piloted.

D. There is evidence that teenagers who start smoking at an early age are more likely to experiment with illegal drugs than teenagers who do not smoke.

E. The percentage of teenagers who reported using drugs at the schools where the "Stop Drugs Now" program was piloted dropped more in the last year than in any other year over the last decade.
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