中医称之为屡孕屡堕者,是指()
A.先兆流产
B.难免流产
C.不全流产
D.完全流产
E.习惯性流产
参考答案:E
—What is Paul like?
—He is never quiet. He never _____.[ ]
A. stops to talk
B. stops talking
C. likes talking
D. talks
最常用于药物滥用检测的样品是()
A.尿
B.全血
C.唾液
D.胃液
E.头发