问题 单项选择题

霍乱流行期间较次要的传染源是()

A.重症病人

B.典型病人

C.轻型病人

D.隐性感染者

E.潜伏期和恢复期带菌者

答案

参考答案:E

解析:考核学生对霍乱传染源的认识。预测错误率较高。常见错误:①选答"C",轻型病人在流行期较多,且常因症状不突出而易被忽略,故为主要传染源之一;②选答"D",隐性感染者数量居多而不易被发现,亦为主要传染源。应复习霍乱的传染源。要点霍乱潜伏期带菌者尚无泻吐,恢复期带菌者排菌时间一般不长,且按规定尚未解除隔离,其排泄物得到了消毒处理,因而两者作为传染源的意义相对较小。

单项选择题

People are indulging in an illusion whenever they find themselves explaining at a cocktail (鸡尾酒) party, say, that they are "in computers," or "in telecommunications," or "in electronic funds transfer". The implication is that they are part of the high-tech world. Just between US, they usually aren’t. The researchers who made fundamental breakthroughs in those areas are in a high-tech business. The rest of us are (71) of their work. We use computers and other new technology components to develop our products or to organize our affairs. Because we go about this work in teams and projects and other tightly knit working groups(紧密联系在一起的工作小组), we are mostly in the human communication business. Our successes stem from good human interactions by all participants in the effort, and our failures stem from poor human interactions.

The main reason we tend to focus on the (72) rather than the human side of the work is not because it’s more (73) , but because it’s easier to do. Getting the new disk drive installed is positively trivial compared to figuring out why Horace is in a blue funk (恐惧) or why Susan is dissatisfied with the company after only a few months. Human interactions are complicated and never very crisp (干脆的, 干净利落的) and clean in their effects, but they matter more than any other aspect of the work.

If you find yourself concentrating on the (74) rather than the (75) , you’re like the vaudeville character (杂耍人物) who loses his keys on a dark street and looks for them on the adjacent street because, as he explains, "The light is better there!".

 

73()

A.trivial

B.crucial

C.minor

D.insignificant

单项选择题