配套习题- 分式的基本性质 -【青果学院】

1/5单选题

难度：

1.把分式

中的x，y都扩大3倍，那么分式的值 ( )

A	扩大3倍
B	扩大9倍
C	缩小3倍
D	不变

正确答案：RA==

6Kej562U77ya4oi1PGltZyB3aWR0aD01MSBoZWlnaHQ9NjIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC83My8xQy9yQkFDRTFUSWx4REI4WEFwQUFBQ2RFRWl6UjQ1NTEucG5nIj7kuK3nmoR477yMeemDveaJqeWkpzPlgI3vvIw8YnI+4oi0PGltZyB3aWR0aD00OSBoZWlnaHQ9NTggc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC9BQS8yNC9yQkFDRkZUSWx4Q0FsNG5zQUFBQ01Cbl9SX282NTEucG5nIj49PGltZyB3aWR0aD00OCBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8zRS9BOC9yQkFDSmxUSWx4RFJrNkJVQUFBQl9UcjhtLTg4ODIucG5nIj49PGltZyB3aWR0aD03NCBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC9BQS8yNC9yQkFDRkZUSWx4RGlBTFJJQUFBQ29WZ2ViTk0yODcucG5nIj48YnI+4oi05YiG5byP55qE5YC85LiN5Y+YPGJyPuaVhemAiUQ=

2/5单选题

难度：

2.下列各式中，从左到右变形正确的是( )

A
B
C
D

正确答案：QQ==

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

3/5单选题

难度：

3.与分式

的值相等的分式是( )

A
B
C
D

正确答案：Qg==

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

4/5单选题

难度：

4.分式

，

中是最简分式的有（）

A	1个
B	2个
C	3个
D	4个

正确答案：Qw==

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

5/5单选题

难度：

5.

下列约分：①；②；③；④；⑤；⑥，其中正确的有 ( )

A	2个
B	3个
C	4个
D	5个

正确答案：Qw==

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