宫外孕最常见的症状（）。

A.停经

B.不规则的 * * 流血

C.腹痛

D.头晕

E.腹胀

_____ by his wisdom and humor at their first meeting, the chairman immediately invited him to attend

the coming Science conference. [ ]

A. Stricken

B. Striking

C. To strike

D. Having stricken