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1. ----How are things getting on? ----All that can be done _______. A. has been done B. have been done C. has done D. have done 2. Who do you ________ tell us _______? A....
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'数据抽象 data abstraction 数据元素 data element 数据对象 data object 数据项 data item 数据类型 data type 抽象数据类型 abstract data type 逻辑结构 logical structure 物理结构 phyical s...'
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'They mainly trade with Japanese firms. 他们主要和日本商行进行贸易。 For the past five years, we have done a lot of trade with your company. 在过去的五...'