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无锡市中考题，题目本简单，不懂题意，懵逼一大片！
无锡市中考题，求y=2x-1的最值，题目本简单，却懵逼一大片。解方程是重点，画出图形更简单！
备战2023中考49/99
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![哈尔滨市气象台发布道路冰雪红色预警[I级/特别严重]](http://p26-sign.bdxiguaimg.com/tos-cn-p-0015/ow6BmZGvLpsbiOLen748ACaBfuAIQEDeAOzdOI~tplv-pk90l89vgd-fglass:864:486:90.jpeg?appId=32&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=101_middle_image&imageType=list&isImmersiveScene=0&is_stream=0&lk3s=9d3f5bff&logId=20250120044520A784C9C63344E2FA917D&requestFrom=101&x-expires=1768855520&x-signature=WVE%2BIR8Xcz6nTWklvFXfvg%2BQiUE%3D)
