小题1:Some people think it is              （polite / impolite）to ask someone’s age.

小题2:If you want to              （success / succeed）in business, think big.

小题3:—Do you think it will do us good or              （harm / harmful）?

—It’s hard to say. Let’s beg for God’s help.

小题4:Jack has many            （friends / relations）, such as uncles, aunts and cousins, in Quanzhou.

小题5:．—The dictionary is a useful              （tool / way）for understanding new words.

—I agree with you.

风湿性心脏病联合瓣膜病伴快速型心房颤动3年，地高辛治疗一个月后出现以下哪种情况，需立即停用洋地黄类药物（）

A.肺动脉瓣区舒张期吹风样杂音增强

B.胸骨左缘3~4肋间出现收缩期吹风样杂音

C.夜间尿量增多

D.心电图ST段呈斜形下移

E.心率56次／分，节律规整