主要用于沉淀胶液中的泥沙杂质的是（）
A.冰糖
B.油类
C.酒类
D.明矾
E.阿胶
参考答案：D
打印省内企业客户网上银行实时交易回单通过（）交易处理。
A、CM47
B、CM87
C、0054
D、0055
-Kate dances so well. Has she ever been trained?
--No. He learns all by herself. She ______ goes to any training class.
A．usually
B．often
C．never
D．even
