问题
选择题
—Here's the film to be developed. I need the pictures in 15 minutes.
—OK. But you have to pay extra _____.[ ]
A. offer
B. charge
C. wage
D. salary
答案
答案：B
搜题请搜索小程序“爱下问搜题”
—Here's the film to be developed. I need the pictures in 15 minutes.
—OK. But you have to pay extra _____.[ ]
A. offer
B. charge
C. wage
D. salary
答案：B
6Cu + SO2↑。对于该反应的下列说法正确的是