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运动解剖学是在研究正常人体形态结构基础上,重点研究运动对人体()和()的影响,探索人体机械运动规律与()关系的一门学科。

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润滑油在高温高压下必须有足够的粘度。

A. 正确
B. 错误

轴向拉伸或压缩杆件,与横截面成()的截面上切应力最大。

A. 45º
B. 90º
C. 30º
D. 60º

Although goods have been lost or damaged whilst in the custody of the Shipowner,()not necessarily responsible,for his liability in respect of them may have been excluded by the rules of common law or by the express terms of the contract or by statute.

A. she is
B. he is
C. they are
D. it i

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