下述哪项不是ARDS直接肺损伤因素
A.感染中毒症
B.重症肺炎
C.淹溺
D.肺挫伤
E.吸入毒气
参考答案:A
— Do you need any help, Lucy?
— Yes. The job is ________ I could do myself.[ ]
A. less than
B. more than
C. no more than
D. not more than
对于燃气燃烧时,火焰经火孔缩回到燃烧器头部,在混合管内或喷嘴处燃烧的现象说法错误的是()。
A、黄焰
B、理想火焰
C、脱火
D、回火
E、燃烧