问题
多项选择题
下列压力差值（P3）属于抗风压性1级的有（）
A、1.2kPA
B、1.3kPA
C、1.4kPA
D、1.5kPA
答案
参考答案：A, B, C
搜题请搜索小程序“爱下问搜题”
下列压力差值（P3）属于抗风压性1级的有（）
A、1.2kPA
B、1.3kPA
C、1.4kPA
D、1.5kPA
参考答案：A, B, C
| 完形填空。 | |||
| Look, this is my village. It is in the mountains. There 1____________ many small houses and a river. There is a bridge 2____________ the river. There aren't 3____________ fish in the river. The water is clean. The air is fresh. The sky is 4____________. The clouds are white. I can run on the grass. It's a beautiful 5____________.
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