井下巷道中由于风速大,风流的流动状态是()。
A、层流
B、混合流
C、紊流
D、过渡流
参考答案:C
关于体温,以下哪项是错误的
A.正常人一天之中体温波动不超过 1℃
B.妇女在月经期体温会轻度升高
C.进餐可引起体温轻度升高
D.心肌梗死后会出现发热
E.安眠药中毒可导致中枢性发热
Please ______in time after you use it. [ ]
A. give it back to him
B. give him back to it
C. give it to him back
D. give him to it back