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问题 单项选择题

根据《水电工程设计概算编制办法及计算标准》(国家经济贸易委员会2002年第78号公告)，备品备件购置费属于( )。

A．项目建设管理费
B．生产准备费
C．安装工程费
D．设备费

答案

参考答案：B

选择题

下列成语的运用，正确的一项是（  ）

A．今天是圣诞之夜，无法回家的同学聚在一起，又唱又跳，享受天伦之乐。

B．今天，张敏迟到了，被班主任批评了一顿，她想辩解又不敢，只好逆来顺受。

C．各处主仆等多半都因日长神倦，宝玉背着手，到一处，一处鸦雀无声。

D．碰见刘祥，我好不尴尬，这时吴明走过来向我借书，我趁机走开，这才转危为安。
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单项选择题

Drug use is rising dramatically among the nation’s youth after a decade of decline. From 1993 to 1994, marijuana use among young people (1) from 12 to 17 jumped 50 percent. One in five high school seniors (2) marijuana daily. Monitoring the Future, which (3) student drug use annually, reports that negative attitudes about drugs have declined for the fourth year in a row. (4) young people see great risk in using drugs. Mood-altering pharmaceutical drugs are (5) new popularity among young people. Ritalin, (6) as a diet pill in the 1970s and now used to (7) hyperactive children, has become a (8) drug on college campuses. A central nervous system (9) , Ritalin can cause strokes, hypertension, and seizures. Rohypnol, produced in Europe as a (10) tranquilizer, lowers inhibitions and suppresses short-term memory, which has led to some women being raped by men they are going out with. (11) taken with alcohol, its effects are greatly (12) . Rock singer Kurt Cobain collapsed from an (13) of Rohypnol and champagne a month before he committed (14) in 1994. In Florida and Texas, Rohypnol has become widely abused among teens, who see the drug as a less expensive (15) for marijuana and LSD. Alcohol and tobacco use is increasing among teenagers, (16) younger adolescents. Each year, more than one million teens become regular smokers, (17) they cannot legally purchase tobacco. By 12th grade, one in three students smokes. In 1995, one in five 14-year-olds reported smoking regularly, a 33 percent jump (18) 1991. Drinking among 14-year-olds climbed 50 percent from 1992 to 1994, and all teens reported substantial increases in (19) drinking. In 1995, one in five 10th graders reported having been drunk in the past 30 days. Two-thirds of high school seniors say they know a (20) with a drinking problem.

11（）

A.When

B.As

C.though

D.while
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