Goods may be dangerous not merely by reason of the fact that they may endanger the safety of the vessel, but also because they are liable to cause the vessel to ________ .
A.
detain
B.
be detained
C.
be detaining
D.
detains
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参考答案:
举一反三
【单选题】有两对闭式直齿圆柱齿轮传动,它们的模数、齿数、齿宽、材料、热处理硬度、载荷、工作情况及制造精度均相同,而中心距分别为a A =135mm,a B =132mm,则两对齿轮的接触强度相比较,其结果( )。