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【初中数学】【核心考点】让二次根式在实数范围内有意义的x取值
介绍了4种常见的求x取值范围的题目，此类题目为中考必考题。
看视频轻松学初中数学，二次根式基础夯实2/12
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介绍了4种常见的求x取值范围的题目，此类题目为中考必考题。
App07:21App08:34App03:31App08:16App07:23App04:52App06:06App04:52App05:34App06:41App04:14App04:54
