急性一氧化碳中毒损害最严重的器官是（）
A.心
B.肝
C.肺
D.肾
E.脑
参考答案：E
I think he will agree to do what you require _____ him. [ ]
A. of
B. from
C. to
D. for
实物直观一般比模象直观教学效果好。
