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51问答网 > 高一数学题！求解答！详细过程谢谢！

高一数学题！求解答！详细过程谢谢！

2025-03-15 21:34:01

推荐回答（2个）

回答1：

第九题选B，因俩平面垂直，一面上一线既可与另一面垂直，也可相交，还可平行。
第十题选C，带2入为ln2＋8－9，因ln2＜1，所以ln2＋8－9＜0，再带3入，ln3＋27－9＞0，所以选C（零点：与x轴交点横坐标数值）
第十一题选D，A为偶，B，C，D均为奇（关于y轴对称为偶，关于原点对称为奇）

回答2：

我觉得第10题应该选c😇

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