125. All the parents at the meeting thei_爱下问搜题

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问题选择题

125. All the parents at the meeting their concerns about their children's safety.

A．explained

B．announced

C．expressed

D．Told

答案

答案：C

填空题

对于抛物线C：y²=4x，我们称满足y₀²＜4x₀的点在抛物线的内部，若点M（x₀，y_o）在C的内部，则直线l：y₀y=2（x+x₀）与抛物线C有______个公共点．

解答题