叫停“特长生加分”的思考/被表彰学生的名字,你一一宣读了吗?/还有多少师生有一个“囫囵”的假期?

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甘薯原产南美,具有耐瘠薄、干旱、适应性广、栽培容易、产量高等特点。自从十六世纪传入我国以来,种植范围几乎遍及全国。长期以来,我国对甘薯的利用,主要是作为粮食作物。
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