了解胎儿宫内发育情况的人工监护方法为()。
A.B超
B.听诊胎心
C.测量子宫底高度
D.测量血压
E.测量孕妇的骨盆各径线
参考答案:C
解析:[知识点] 过期妊娠
During the reading lesson, the teacher asked students to read a few ______ from the novel.
A.pieces
B.essays
C.fragments
D.extracts
气开式薄膜阀随着压力信号的增加而开大。