中国馆有中国的（）3部分组成。
A.国家馆、主题馆以及港澳台馆
B.国家馆、地区馆以及上海馆
C.国家馆、地区馆以及港澳台馆
参考答案：C
—Mike, could you tell me if Mary to my party tomorrow?
—I think she will if she time.
A．come, has
B．comes, will have
C．will come, has
D．will come, will have
逆流再生固定床交换剂层越往上，再生程度越低．（）
