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【简答题】
银行汇票是银行签发、银行承兑、银行付款的票据。（ ） 对 错
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反馈参考答案：
举一反三
【单选题】常用的痰液稀释药是 prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
氯化铵
B.
溴己新
C.
乙酰半胱氨酸
D.
胰道酶
E.
羧甲司坦
【单选题】Henry seldom came here to help us, _____?
A.
didn’t he
B.
doesn’t he
C.
dose he
D.
did he
【简答题】Before he came we had expected him to help us but when he was with us he didn't do much.
【单选题】Henry seldom came here to help us , _____ ?
A.
didn’t
B.
doesn’t he
C.
does he
D.
did he
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