题干
—Who has broken the window in my room?
—Who else it but your naughty son!
A：could do
B：could have done
C：might do
D：must have done
答案(点此获取答案解析）
B
A：could do
B：could have done
C：might do
D：must have done
2 SO3（g）△H<0。下列各图表示当其他条件不变时，改变某一条件对上述反应的影响，其中分析正确的是