风湿性心瓣膜病最常受累的瓣膜为
A．肺动脉瓣
B．主动脉瓣
C．二尖瓣
D．三尖瓣
E．主动脉瓣及肺动脉瓣
参考答案：C
— Do you think that housing price will keep _____ in the year to come?
— Sorry, I have no idea. [ ]
A. lifting up
B. going up
C. bringing up
D. growing up
若发生火灾探测器误报，对火灾报警控制器复位即可。
