中学生网络课堂本课配套习题挑战模式1/5
单选题
难度系数：
1.把分式
中的x，y都扩大3倍，那么分式的值 ( )
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 |
一次做对，真牛！
+5奖励规则>
- 提示1：5YiG5byP55qE5Z+65pys5oCn6LSo77yM5YiG5a2Q5YiG5q+N5ZCM5LmY5oiW6ICF5ZCM6Zmk5Lul5LiA5Liq5LiN5Li66Zu255qE5pW05byP77yM5YiG5byP55qE5YC85LiN5Y+Y
- 答案：RA==
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
本课配套习题挑战模式2/5
单选题
难度系数：
2.下列各式中，从左到右变形正确的是( )
A:  |
B:  |
C:  |
D:  |
一次做对，真牛！
+5奖励规则>
- 提示1：5YiG5byP55qE5Z+65pys5oCn6LSo77yM5YiG5a2Q5YiG5q+N5ZCM5LmY5oiW6ICF5ZCM6Zmk5Lul5LiA5Liq5LiN5Li66Zu255qE5pW05byP77yM5YiG5byP55qE5YC85LiN5Y+Y
- 答案：QQ==
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
本课配套习题挑战模式3/5
单选题
难度系数：
3.与分式
的值相等的分式是( )
的值相等的分式是( ) A:  |
B:  |
C:  |
D:  |
一次做对，真牛！
+5奖励规则>
- 提示1：5YiG5byP55qE5Z+65pys5oCn6LSo
- 答案：Qg==
6Kej562U77ya4oi1Qi4gPGltZyB3aWR0aD0zNCBoZWlnaHQ9Mzggc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC9BQS8yNS9yQkFDRkZUSWx5aXdlaTFCQUFBQjhnNEU0R1U2MTcucG5nIj49PGltZyB3aWR0aD0yNiBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC83My8xQy9yQkFDRTFUSWx5akFoSVRIQUFBQm4yWldDRnM1MDUucG5nIj49PGltZyB3aWR0aD0yMiBoZWlnaHQ9Mzggc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8zRS9FNy9yQkFDSjFUSWx5ampVX01tQUFBQjJwZkRpNTA3MDkucG5nIj4s5YiG5a2Q5YiG5q+N5ZCM5pe25LmY5LulLTHvvIzliIblvI/nmoTlgLzkuI3lj5jvvIxBLEMsROe7k+aenOmDveaYry08aW1nIHdpZHRoPTIyIGhlaWdodD0zOCBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzNFL0U3L3JCQUNKMVRJbHlqalVfTW1BQUFCMnBmRGk1MDcwOS5wbmciPjxicj7mlYXpgIlC
本课配套习题挑战模式4/5
单选题
难度系数：
4.分式
，
，
，
中是最简分式的有（）
，，，中是最简分式的有（） | A: 1个 |
| B: 2个 |
| C: 3个 |
| D: 4个 |
一次做对，真牛！
+5奖励规则>
- 提示1：5YiG5a2Q5YiG5q+N5LiN6IO95YaN57qm5YiG77yI5peg5YWs5Zug5byP77yJ55qE5YiG5byP5Y+r5pyA566A5YiG5byP
- 答案：Qw==
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
本课配套习题挑战模式5/5
单选题
难度系数：
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 |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5YiG5byP55qE57qm5YiG77yM5YiG5a2Q5YiG5q+N5ZCM5pe26Zmk5Lul5ZCM5LiA5Liq5pW05byP77yI5Y2z57qm5Y675pyA5aSn5YWs5Zug5byP77yJPC9wPg==
- 答案：Qw==
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
