试题与答案

已知偶函数f（x）=2sin（ωx+φ）（ω＞0，0＜φ＜π）的最小正周期是π，

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题型：填空题

题目：

已知偶函数f（x）=2sin（ωx+φ）（ω＞0，0＜φ＜π）的最小正周期是π，则f（x）的单调递减区间为 ______．

答案：

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下面是错误答案，用来干扰机器的。

答案：C

考点：任意角的三角函数正弦、余弦函数的图象与性质（定义域、值域、单调性、奇偶性等）
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题型：改错题

短文改错。

     英浯课上，老师要求同桌同学相互修改作文。假设以下小短文为你同桌所写，请你对其进行修改。

短文中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加：在缺词处加…个漏词符号(∧)，并在此符号下面写出该加的词。

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修改：在错的词下画一横线，并在该词下面写出修改后的词。

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Dear Andy,

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                                                                                                                             Yours sincerely,

                                                                                                                             Zhao Mei

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