冬季北方平原某燃煤城市发生了一次急性大气污染事件,一周内城市居民普遍出现咳嗽、胸痛以

题型:单项选择题

问题:

冬季北方平原某燃煤城市发生了一次急性大气污染事件,一周内城市居民普遍出现咳嗽、胸痛以及气管炎等呼吸系统和心血管系统疾病。当时天气晴朗,风速小。

当时最可能的气象条件是

A.气压低、逆温

B.气压高、逆温

C.气旋、逆温

D.反气旋、大气不稳定

E.辐射逆温

考点:公卫执业医师公卫执业医师
题型:单项选择题

Chinese White Collars(白领) Go Down on the Farm

The latest craze among China’s white collar workers, reported in the British newspaper the Daily Telegraph, is an online virtual agricultural game called “Happy Farm.” Virtual farmers can visit each other’s farm, trade livestock and can use real cash to buy virtual (虚拟的) items such as special tools, quality seeds, and animals. The free game is played through social networking sites like kaixin001.com, Face book or xiaonei.com.

Urban office workers can escape the pressures and stresses of everyday life and enter a peaceful virtual existence where players can grow vegetables, practice animal farming and receive satisfaction that comes with a hard-won harvest. Because most Chinese white collars have little amusement after work, Happy Farm gives them a virtual world to make their dreams come true.

Global Times, an English language daily based in Beijing, recently reported that there are more than 15 million Chinese urbanites spending more than five hours a day on their virtual “farms.”

According to the English language website of the People’s Daily newspaper, the increased interest in farming among some urban office workers has resulted in some of them becoming real hobby farmers, tending small plots of land in their free time. Mr. Liu, a white collar worker, has rented a piece of farmland for RMB 3000. Mr. Liu and his family like to drive down to their farm on the weekend and do different farming tasks such as watering, weeding, fertilizing and worming. Later on, cabins will be built on agricultural land making it possible for part-time farmers like Mr. Liu to stay on their land for two weeks enabling them to get a little taste of a farmer’s life.

It is a rather interesting social development that some of urban office workers are becoming interested in farming and agriculture, while large numbers of farmers and agricultural workers continue to move to the cities.

小题1:What is “Happy Farm”? (No more than 7 words)

小题2:Why do more and more Chinese white collars go down on Happy Farm?

(No more than 14 words)

小题3:List 4 farming tasks Mr. Liu and his family do on their farms. (No more than 5 words)

小题4:How long do Chinese urbanites spend on their virtual farms every day? (No more than 4 words)

题型:单项选择题

关于造影剂的分类组合哪种是错误的

A.硫酸钡--高密度造影剂

B.泛影葡胺--无机碘化物

C.空气、二氧化碳、氧气--低密度造影剂

D.胆影葡胺--有机碘化物

E.碘苯酯--碘化油类

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晋代游仙诗的代表作是()。

A.左思

B.刘琨

C.郭璞

D.孙绰

题型:单项选择题

下列行为中,属于扰乱电信市场秩序的是()。

A.向互联网传播病毒

B.盗接他人电话线路

C.盗窃电话设施

D.故意破坏正在使用的公用电信设施

题型:单项选择题

公安机关因侦查犯罪的需要,根据国家有关规定,经过严格的批准手续,可以采取技术侦查措施。 ( )

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