2016新课标创新人教A版数学选修4-52.1比较法
INCLUDEPICTURE "第二章.tif" \* MERGEFORMAT INCLUDEPICTURE "预习导引区反.tif" \* MERGEFORMAT [核心必知]比较法证明不等式可分
2016新课标创新人教A版数学选修4-52.1比较法