下列哪种药物是治疗类风湿关节炎的慢作用抗风湿药（）。
A.金合剂
B.氯喹
C.青霉胺
D.氢氧化铝
E.甲氨蝶呤
参考答案：A, B, C, E
— I'm leaving tomorrow.
— Oh, what a pity! I won't be able to see you off. I ____ a tele-conference the whole morning.
A．have
B．am having
C．will be having
D．will have had
.
We have moved to live in the countryside, because we get tired _________ the city life. ^*
A．with
B．of
C．at
D．on
