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问题 单项选择题

建设项目竣工环境保护验收时，废气无组织排放，一氧化碳的监控点设在单位周界外（）范围内浓度最高点。

A.5m

B.10m

C.15m

D.20m

答案

参考答案：B

解析：二氧化硫、氮氧化物、颗粒物、氟化物的监控点设在无组织排放源下风向2～50m浓度最高点，其余污染物的监控点设在单位周界外10m范围内浓度最高点。

单项选择题

Industrial pollution is not only a problem for the countries of Europe and North America but also an extremely serious problem in some developing countries. For these countries, economic growth is a very important aim. They want to introduce industries, and so they put few controls on the industries which cause pollution.
Cubatao, an industrial town of 85 000 people in Brazil, is an example of the connection between industrial development and pollution. In 1954, Cubatao had no industry. Today it has more than twenty large factories, which produce many pollutants. The people of the town are suffering from the poisonous matter in their environment and the bad effects can be clearly seen. Birth shortcomings are extremely common. Among children and adults, lung problems are sometimes twelve times more common in Cubatao than in other places.
It is true that Brazil, like many other countries, has laws against pollution, but these laws are not enforced strictly enough. It is cheaper for companies to take no notice of the laws and pay the fines than to buy the expensive equipment that will reduce the pollution. It is clear, therefore, that economic growth is more important to the government than to the health of the workers. However, the responsibility does not completely lie with the Brazilian government. The example of Cubatao shows that international companies are not acting in a responsible way either. A number of the factories in the town are owned by large companies from France, Italy, and the US. They are doing things in Brazil that they would not be able to do at home. If they caused the same amount of pollution at home, they would be severely punished or even put out of business.

How is the health of the population of Cubatao

A. There are more heart diseases among people who live near chemical factories.
B. More people suffer from lung diseases because of poisonous matter.
C. Their health is affected by pollutants the same way as that of other Brazilians.
D. Babies there are found not as bright as those who live in other places.
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单项选择题

二氧化碳是一种惰性气体，具有不导电、不腐蚀、无余渣、不会损坏物品、可长期保存不会变质随时可用的特点，最适宜扑灭（）火灾。

A、电气；

B、铝粉；

C、铝镁合金；

D、硝酸纤维。
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