砒石的内服剂量是()
A.0.05~0.1g
B.0.015~0.03g
C.0.002~0.004g
D.1.5~3g
E.0.01~0.05g
参考答案:C
I don't like going out. I'm very_________. [ ]
A. funny
B. quiet
C. quite
D. active
在危险品保管中()的基本方法是:严格按照操作程序操作,防止易燃气体、易燃物蒸汽与空气混合,消除可引燃的火源,阻止火灾和爆炸的扩展。
A.防盗
B.防火和防爆
C.保质
D.防变质