硅胶在使用前应活化处理,具体的操作是将硅胶放在浅的容器中,在()下干燥()。
A.150℃、3h
B.175℃、3h
C.150℃、2h
D.175℃、2h
参考答案:B
Only when ______ in 1918, ______ happily back to work.
A.the war was over … he went
B.was the war over … did he go
C.the war was over … did he go
D.was the war over … he went
我国古代收集、审查证据的方法主要有()
A.刑讯
B.五听
C.现场勘验
D.鉴定
E.对质