如果1个钻机每0.15秒钻1个孔,那么,该钻机1小时能钻多少个孔
A.2400
B.5400
C.24000
D.5400O
参考答案:C
– I am sorry to have shouted at you. I didn’t mean to be so rude.
--- You were very angry. Anyway, __________.
A.you’re welcome
B.that’s right
C.it doesn’t matter
D.I’m sorry about that
通常采用阴干法干燥的药材是()
A.粉质类药材
B.黏性类药材
C.油质类药材
D.芳香类药材
E.色泽类药材