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问题 填空题

若（x-3）2+|2y+1|=0，则x-y=______．

答案

∵（x-3）2+|2y+1|=0；

∴x-3=0，2y+1=0，

解得x=3，y=-0.5；

故x-y=3.5．

故答案为3.5．

单项选择题

按照建设工程项目信息的分类，下列不属于按信息的内容属性分类的是( )。

A．经济类信息
B．设计类信息
C．技术类信息
D．管理类信息
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单项选择题

Man: Though we didn’t win the game, we were satisfied with our performance.
Woman: You did a great job, you almost beat the world champions. It s a real surprise to many people.
Question: What do we learn from this conversation（）。

A. They both enjoyed watching the game.

B. The man thought the results were beyond their expectations.

C. They both felt good about the results of the game.

D. People were surprised at their wining the game.
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