简述预防多环芳烃污染食品危害人体健康的措施。

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问题问答题论述题

答案

参考答案：

（1）制定食品中允许限量。

（2）改进食品烹调加工过程。减少煎炸食品和烧烤食品摄入量。

（3）加强环境污染的治理和监督。

（4）去除食品中3，4-苯丙芘等。

单项选择题

世界银行贷款“卫生七项”的内容是

A．性病(艾滋病)预防项目计划
B．疾病预防项目计划
C．结核病控制项目计划
D．中国农村卫生发展项目计划
E．农村基本卫生服务项目计划

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单项选择题案例分析题

Shopping habits in the United States have changed greatly in the last quarter of the 20th century. （1） in the 1900s most American towns and cities had a Main Street. Main Street was always in the heart of a town. This street was （2） on both sides with many （3） businesses. Here, shoppers walked into stores to look at all sorts of merchandise: clothing, furniture, hardware, groceries. （4）,some shops offered （5） .These shops included drugstores, restaurants, shoe-repair stores, and barber or hairdressing shops. （6） in the 1950s, a change began to （7） .Too many automobiles had crowded into Main Street （8） too few parking places were （9） shoppers. Because the streets were crowded, merchants began to look with interest at the open spaces （10） the city limits. Open space is what their car-driving customers needed. And open space is what they got （11） the first shopping centre was built. Shopping centres, or rather malls, （12） as a collection of small new stores （13） crowded city centres. 14 by hundreds of free parking space, customers were drawn away from （14） areas to outlying malls. And the growing （16） of shopping centres led （17） to the building of bigger and betterstocked stores. （18） the late 1970s,many shopping malls had almost developed into small cities themselves. In addition to providing the （19） of one stop shopping, malls were transformed into landscaped parks, （20）benches, fountains, and outdoor entertainment.

请在13处填上正确答案（）

A.out of

B.away from

C.next to

D.near

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