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问题 选择题

下列句子中没有错别字的一句是 

A．艾滋病在全球呈现蔓延的趋势，成为人类的公害，这已经是无庸质疑的事实。

B．阿Q这个人物也是有生活原型的，更重要的是他反映了那个时代国民精神的一些弊病。

C．1月19日，东海某海域浪花飞溅，由东海舰队某驱逐舰支队多艘驱护舰组成的舰艇编队，捉对撕杀，新年度海上训练正在紧张进行。

D省高法对该案进行二审时，法官明查秋毫，发现疑点并将案件发回重审，真凶终于伏罪。

答案

B 

A 无庸置疑   C 厮杀  D 明察秋毫）

单项选择题

The human body secretes more pain-blocking hormones late at night than during the day. Consequently, surgical patients operated on at night need less anesthesia. Since larger amounts of anesthesia pose greater risks for patients, the risks of surgery could be reduced if operations routinely took place at night.
Which of the following, if true, argues most ply against the view that surgical risks could be reduced by scheduling operations at night

A．Energy costs in hospitals are generally lower at night than they are during the day.

B．More babies are born between midnight and seven o’clock in the morning than at any other time.

C．Over the course of a year, people’s biological rhythms shift slightly in response to changes in the amounts of daylight to which the people are exposed.

D．Nurses and medical technicians are generally paid more per hour when they work during the night than when they work during the day.

E．(E) Manual dexterity and mental alertness are lower in the late night than they are during the day, even in people accustomed to working at high.
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判断题

根据分离定理，在均衡状态下，每种证券在均点处投资组合中都有一个非零的比例。
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