题干
----What _______ the children be doing?
----They _______ be playing a game called Bingo.
----They _______ be playing a game called Bingo.
A：might; ca
B：can; might
C：might; might
D：can; ca
答案(点此获取答案解析）
B
2SO3（g ) ；△H < O。下列各图表示当
其它条件不变时，改变某一条件对上述反应的影响，其中分析正确的是