初产妇第二产程的时间是( )。
A.5~15分钟B.1小时C.l~2小时D.6~8小时E.11~12小时
参考答案:C
解析:[知识点] 分娩的临床经过
The performance supposed to be popular______ to be a great disappointment after it was over.
A.turned up
B.turned down
C.turned out
D.turned over
红色小麦中种皮为深红色或红褐色的麦粒应≥()。
A、60%
B、70%
C、80%
D、90%