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问题 单项选择题

当胎儿后肩入盆时，将后肩向侧上旋转，同时将胎头同向旋转，当后肩旋转至前肩位置时娩出

A．不完全流产
B．稽留流产
C．难免流产
D．先兆流产
E．完全流产

答案

参考答案：C

单项选择题

The operating cord on an inflatable liferaft should be renewed by（）.

A.removing the top half of the shell，cutting the line at its source，and renewing completely

B.cutting the line where it enters the case and replacing that portion

C.leaving the original line and tying another one to it so the two lines will take the strain

D.an approved servicing facility ashore
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名词解释

体育社团
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