一般情况下读什么语调 What's this in English ? It's a desk . A 降,升 B 降,降 C 升,降

一般情况下读什么语调 What's this in English ? It's a desk . A 降,升 B 降,降 C 升,降

B
What's this in English It's a desk .
这是特殊疑问句及其答语,都读降调.