题目内容

事务T1，T2，T3分别对数据D1，D2，D3并发操作如下图所示，其中T1与T2问的并发操作存在的问题是 (1) 。T2与T3问的并发操作存在的问题是 (2) 。
1.

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试在表8-2中填制每个投标单位各项指标得分及总得分。其中报价得分要求列出计算式。请根据总得分列出名次并确定中标单位。

Write a short composition of about 250 to 300 words on the topic given below. Write it neatly on ANSWER SHEET 2.
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？You have received an e-mail from a customer who in the e-mail complained that he had received 100 green colour jackets instead of 50 green and 50 blue colour jackets. In order to solve the problem and find out the facts, you write a short note to the clothing store.
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？Write 30--40 words on your Answer Sheet.