慢性阻塞性肺气肿患者语音震颤的表现是（）
A.一侧增强
B.一侧减弱
C.双侧减弱
D.双侧增强
E.双侧正常
参考答案：C
The traffic is heavy these days. I______ arrive a bit late, so could you save me a place? [ ]
A. can
B. might
C. need
D. must
“民政”一词由何而来？
