题目内容

考虑定义在事务集(T1，T2，T3) 上的调度S1和S2，S1与S2是否是冲突等价的？为什么？

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SECTION A COMPOSITION (35 MIN)
Now many universities are asking their students to evaluate their teachers. Many students are excited at this, but most teachers seem to hold different opinions. What's your opinion？
Write on ANSWER SHEET TWO a composition of about 200 words on the following topic:
Should Teachers Be Evaluated by Students？
You are to write in three parts.
In the first part, state specifically what your opinion is.
In the second part, provide one or two reasons to support your opinion.
In the last part, bring what you have written to a natural conclusion or make a summary.
Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the instructions may result in a loss of marks.

制药厂能否请求药材公司支付违约金并双倍返还定金？说明理由。

同其他品牌相比，我们的电脑质量上乘，价格富有竞争力。

项目建设对区域环境带来的不利影响体现在()。