试题与答案

在爆炸性气体环境中的各种电气设备的选型应符合有关规定。请根据设计规范进行下列设备选型

题型:不定项选择

题目:

在爆炸性气体环境中的各种电气设备的选型应符合有关规定。请根据设计规范进行下列设备选型。

在爆炸性气体危险区域为1区的场所应慎用的灯具为()。

A.增安型固定式灯

B.隔爆型移动式灯

C.隔爆型携带式电池灯

D.隔爆型指示灯

答案:

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题型:单项选择题

Audrey is a Chinese-American student. She has found many value(价值观) differences between Chinese and Americans.
About money
1) Americans would like to spend more than they have, so many of them are always in debt (欠债). Chinese usually spend less than they have, so many of them always have money left in the bank.
2) American kids love to make money by themselves. Chinese kids always ask their parents for money.
3) American parents think it is not useful to send their children to an expensive university. Chinese parents would do anything to send their children to good universities and that might make them very poor sometimes.
About school
1) Many American girls take part in sports, dancing and singing groups while Chinese girls take part in academic groups.
2) Some American students think that "B" is a gift while Chinese students think that "B" is terrible.
American parents and Chinese parents
American parents allow their daughters or sons to go out to have some part-time jobs in their free time or at the weekends. Chinese parents usually don’t allow their children to do so in middle or high schools.

The best title for the passage would probably be ______.

A.Differences between Chinese and Americans

B.Chinese Students and American Students

C.Chinese Parents and American Parents

D.Chinese Values and American Values

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