据《素问·咳论》内容，症见“咳而失气”者，病属（）
A.三焦咳
B.小肠咳
C.大肠咳
D.胃咳
E.肺咳
参考答案：B
My sister met him at the Grand Theatre yesterday aftemoon , so he _____ your lecture. [ ]
A. couldn't have attended
B. needn't have attended
C. mustn't have attended
D. shouldn't have attended
对采用气压强度试验的容器和管道系统，气密性试验可在气压强度试验时，气压降到设计压力后，一并进行检查。
