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【判断题】
低温大电流放电容易造成蓄电池活性物质脱落,缩短蓄电池使用寿命。A.
正确
B.
错误
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举一反三
【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】资产负债表的格式有____________和____________两种,不管采用哪种格式,资产都按____________大小进行列示。
【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 ...
【单选题】—Lucy, I passed the English exam. It is not so difficult as I thought. —______________. [ ]
A.
Well done
B.
Bad luck
C.
What a pity
D.
Congratulations
【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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