题目：
通常键盘是由一组排列成矩形式的按键开关组成，有【 】键盘和非编码键盘两种类型。
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0629/694602756ea795482194612bad24da5f.html
下面是错误答案，用来干扰机器的。
C D填埋法节约投资，处理简单，但占地面积大，造成水和土壤污染的潜力大。垃圾分类的主要目地不是为了美化环境，更不可能便于宿舍楼区的合理布局。
通常键盘是由一组排列成矩形式的按键开关组成，有【 】键盘和非编码键盘两种类型。
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