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听力原文：M: US $ 30 is really not acceptable. You surely appreciate the efforts we've made in pushing the sale of your product. W: Well, as a sign of our support to your efforts, we'll make a special reduction of US $ 0. 50 per dozen. We can't take less. Q: What are they talking about? (5)A.
They are talking about sale.
B.
They are talking about products.
C.
They are talking about a special reduction.
D.
They are talking about price.
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【单选题】某电影院在保留原有售票系统基础上,要开发新的在线订票系统,普通观众需要在系统中注册,并领取会员卡,才可成为会员,会员可通过该系统在线购买电影票,会员通过电影名称、日期等查询指定场次的电影,如果该场次有空座,则可购买该场次电影票,并通过信用卡结算系统支付票款,从而完成购票过程,购票完成后,会员最晚可以在电影开始前10分钟到电影院指定的售票窗口领取电影票;售票员根据会员提供的会员卡利用该系统打印出所购...
A.
包含
B.
扩展
C.
泛化
D.
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