Singe women usually stay away from marriage by their own choice, ______ single men are mostly

victims of circumstances.                                              [      ]

A. for        

B. while       

C. and          

D. but

下列哪项与“珍爱生命，关注健康”这一观念不相符合？

A．不吃发霉变质的食物

B．吸食毒品

C．选择恰当方式宣泄情绪

D．学习急救知识