风湿性心脏瓣膜病最常累及（）。
A.三尖瓣和主动脉瓣
B.三尖瓣和肺动脉瓣
C.二尖瓣和肺动脉瓣
D.二尖瓣和主动脉瓣
E.二尖瓣和三尖瓣
参考答案：D
______ the aids from the outside, the positive attitude of the disaster-stricken people _____ the key role in the reconstruction of their destroyed towns and villages. [ ]
A. Except for; plays
B. Besides; play
C. Apart from; plays
D. Except; play
关于心理咨询师的责任心，下列说法不正确的是（）
A.要求对求助者认真负责
B.要求对社会负责
C.对自己要求要十全十美
D.对职业负责
