毛发的生长（）连续进行的。
A.是
B.不是
C.偶尔
D.经常
参考答案：B
As a student, he knows that he must _______ himself to get good marks.[ ]
A. depend on
B. help out
C. give his life to
D. take care of
前置胎盘患者进行产科检查，错误的是
A．胎方位清楚B．先露高浮C．胎心正常D．子宫大小与停经月份一致E．宫颈抬举痛明显
