南柴胡与北柴胡气味的主要区别是南柴胡有（）
A.辛辣味
B.微涩
C.芳香
D.具败油气
参考答案：D
输卵管妊娠患者就诊的主要症状为（）。
A.停经
B.腹痛
C. * * 流血
D.晕厥
E.腹部包块
What he has learned through practice before _____ him a lot in his future work.
A．helping
B．helped
C．it helps
D．will help
