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【单选题】
井下巷道坡度大于（）时严禁人力推车。
A.
6‰
B.
15‰
C.
8‰
D.
7‰
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【单选题】在粱、柱类构件的纵向受力钢筋搭接长度范围内,应按设计要求配置箍筋。当设计无具体要求时,受拉搭接区段的箍筋间距不应大于搭接钢筋较小直径的( )倍。
A.
5
B.
6
C.
7
D.
8
【单选题】Entertainment in LondonBuying Books Londoners are great readers. They buy vast numbers of newspapers and magazines and even of books especially paperbacks, which are still comparatively cheap in spite...
A.
It’s to the cast of London.
B.
It’s street of bookstores.
C.
It’s a center for second-hand books.
D.
It’s where worthless books are sold.
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【单选题】在粱、柱类构件的纵向受力钢筋搭接长度范围内,应按设计要求配置箍筋。当设计无具体要求时,受拉搭接区段的箍筋间距不应大于搭接钢筋较小直径的( )倍。
A.
5
B.
6
C.
7
D.
8
【单选题】Entertainment in LondonBuying Books Londoners are great readers. They buy vast numbers of newspapers and magazines and even of books especially paperbacks, which are still comparatively cheap in spite...
A.
It’s to the cast of London.
B.
It’s street of bookstores.
C.
It’s a center for second-hand books.
D.
It’s where worthless books are sold.
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