重症烧伤病人真菌感染的特点()
A.常单独存在
B.常与细菌感染混合存在
C.诊断困难
D.尸解检出率远高于临床
E.一旦诊断后,应用抗真菌药物5天即可治愈
参考答案:B, C, D
The leader of the factory told us that very little ___was made of the waste material in the past.
A.cost
B.value
C.use
D.matter
给水泵汽轮机启动时应先抽真空后送汽封。()