题目

A stupid man tells a woman to shut up, while a wise man tells her that her mouth is quite beautiful it is closed. A . unless B . since C . when D . though 答案：C下列不能传播艾滋病的途径是（ ）A.不安全性行为B.饮食和接触C.输入含HIV的血液制品D.已感染HIV的妇女哺乳婴儿