My grandfather was badly ill, so we asked him _________ smoking.

A．to give up

B．give up

C．gave up

D．given up

“夫医者，非仁爱之士不可托也，非聪明达理不可任也，非廉洁淳良不可信也。”是说我国古代医生择徒甚严，此话出自（）

A．孙思邈

B．白求恩

C．张仲景

D．希波克拉底

E．杨泉