'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 11、熟悉概念、公式定理 初二数学当中概念比较长,公式定理比较短。往往我们在学习...
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'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 3x=8,在整数范围内是无解方程式(尽管在有理数范围内有解),x+1=0,在实数范围内是无解...