根据《城市区域环境振动标准》(GB10070—88)，在商业中心区的夜间铅垂向Z振级标准值为( )dB。
A．65
B．70
C．72
D．75
参考答案：C
解析： 根据《城市区域环境振动标准》(GB 10070—88)，城市各类区域铅垂向Z振级标准值如下表。
城市名类区域铅垂向Z振经标准值 单位：dB 适用地带范围
完形填空
| 完形填空。 | A: Which meal do we need most, breakfast, lunch or l ?
B: Dinner.
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B: Is lunch the meal we want most?
A: No, 3 is the meal we need most. But why?
C: It is a long time from night to morning. We have no 4 .
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D: I think we can 6 milk, bread, noodles or porridge. 7 are good for breakfast.
A: That's right. We can eat some vegetables and fruits 8 the morning, too.
E: I 9 Coca-Cola a lot. Can I have that in the morning?
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F: Mom says we can not eat too much things after 10 .
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( )5. A. good
( )6. A. take
( )7. A. You
( )8. A. for
( )9. A. play
( )10. A. school | B. food
B. need
B. lunch
B. food
B. great
B. make
B. They
B. in
B. bring
B. class | C. dinner
C. think
C. dinner
C. vegetables
C. fine
C. have
C. We
C. on
C. like
C. sports | D. vegetables
D. know
D. branch
D. water
D. well
D. like
D. He
D. of
D. eat
D. lunch |
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