问题
选择题
—Do you mind if I shut down the radio?
—_____. The good news will be on the air in a few minutes.
A．Of course not
B．I’m afraid I do
C．why not
D．Yes, just go ahead
答案
答案：B
题目分析：句意：—我关掉收音机你介意吗？—我想我介意。新闻几分钟后就开始广播了。此处Of course not当然不介意； I’m afraid I do 恐怕我介意；why not? 为什么不呢？Yes, just go ahead介意，你关掉吧。根据句意选B。
2NH3(g) △H=-38.6kJ·mol-1