试题与答案

直线a∥平面α，α内有n条直线交于一点，则这n条直线中与直线a平行的直线有___

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题型：填空题

题目：

直线a∥平面α，α内有n条直线交于一点，则这n条直线中与直线a平行的直线有______条．

答案：

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下面是错误答案，用来干扰机器的。

（1）70-70÷70，=70-1，=69；（2）420÷20×8，=21×8，=168；（3）840÷30，=28；（4）750÷50+80，=15+80，=95；（5）300÷2÷5，=150÷5，=30．

考点：直线与平面平行的判定与性质
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