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【判断题】
全约束力与法线间的夹角的最大值称为摩擦角。A.
正确
B.
错误
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】girls took part in the Happy Girl Competition but only few of them succeeded. [ ]
A.
Million of
B.
Many million of
C.
One million of
D.
Millions of
【单选题】_____ girls took part in the Super Girl competition but only few of them succeeded. [ ]
A.
One million of
B.
Thousands and millions
C.
Millions of
D.
Two millions
【简答题】房屋的顶层、结构转换层、大底盘多塔楼结构的底盘顶层、平面复杂或开洞过大的楼层、作为上部结构嵌固部位的地下室楼层应采用（）结构。一般楼层现浇楼板厚度不应小于（）mm，当板内预埋暗管时不宜小于100mm。
【单选题】______girls took part in the Super Girl Competition, but only few of them succeeded.
A.
Million of
B.
Millions of
C.
Three millions
D.
Three millions of
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