题干
I would appreciate _________ if you could come to my birthday party.
A：you
B：that
C：thi
D：it
答案(点此获取答案解析）
D
A：you
B：that
C：thi
D：it
2Z，反应中ω（Z的物质的量分数）随温度T的变化如下图所示。下列判断正确的是