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【单选题】
混凝土倒入模盒内，其自由落体高度不超过（ ）米。A.
5
B.
2
C.
1
D.
.5
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参考解析：
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【单选题】平面构架由AB、BC、CD三杆用铰链B和C连接，其他支承及载荷如图所示。力F作用在CD杆的中点E。已知F＝8kN，q=4kN/m，a=1m，各杆自重不计。则固定端A处的约束力偶M大小【图片】
A.
M ＝ 10KN · m
B.
M ＝ 12KN · m
C.
M ＝ 14KN · m
D.
M ＝ 16KN · m
【简答题】10·连杆由______、_______和_______三部分组成。连杆_______与活塞销相连。
【简答题】听力原文：M: Well, I thought it was a bit strange at the time, but I just took down what I thought I heard on the machine, and then made out the order form. accordingly. It wasn't till they called back to ...
【简答题】听力原文：F: Well, I got there and I thought I was really well prepared for this. I was wearing my be a suit. I arrived on time and so did the other three applicants. But they kept us waiting for an hour a...
【简答题】资产负债表的基本格式有哪两种?
【简答题】压力表示方法有()和()两种,真空度属于()
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