清晨起床或夜间卧下时咳嗽加剧的是（）
A.肺脓肿
B.胸膜炎
C.气管异物
D.急性咽炎
E.大片肺不张
参考答案：A
先化简，再求值：5x(2x+1) ﹣(2x+3)(5x﹣1) ，其中x=13 ．
Though it rained hard, a lot of fans were waiting at the exit of the airport, __________ to see their famous pop stars.
A．eager
B．greedy
C．nervous
D．curious
