下列是取出少量固体粉末并装入试管进行加热的过程,各步操作中不正确的是[ ]
A.取出固体粉末
B.装入固体粉末
C.点燃酒精灯
D.加热固体粉末
答案：A
394897≈39万______．
—Do you know _____ the CD yesterday?
—Sorry, I don't know. [ ]
A. how much he paid for
B. how much he will pay for
C. how much did he pay for
D. how much will he pay for
