脓胸
A．咳嗽伴咯血B．咳嗽伴杵状指C．咳嗽伴哮鸣音D．咳嗽伴大量脓痰E．咳嗽伴双肺底水泡音
参考答案：D
At the conference, people of different ________ were given a chance to exchange theirs with each other. [ ]
A. points
B. manners
C. views
D. ways
在滑模施工中，可在其底部的中央设置仪器井，将激光垂准仪固定安置在井中。进行投点时，在工作平台中央安置接收靶。( )
