男性,41岁。查体见双侧肺泡呼吸音减弱。首先考虑()
A.酸中毒
B.肺不张
C.发热
D.肺气肿
E.肺癌
参考答案:D
I'll go to the library as soon as I finish what I .
A.was doing
B.am doing
C.have done
D.had been doing
倒闸操作必须根据值班调度员或值班负责人命令,受令人复诵无误后执行。