单击此处编辑母版标题样式单击此处编辑母版文本样式第二级第三级第四级第五级Unit 5lesson 30This animals are our friends.People are trying to protect them.fast try These animals are our friends.Just writeHomework 1. Practice writi
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Ⅱ 危重 10分钟内立即监护重要生命体征病情分级标准(香港)慢性疾病急性发作的病人如哮喘持续状态小面积烧伤感染轻度变态反应等
Mt. Huangshan in spring is like a maiden - all is new fresh and tender. Springes in April but its onset is delayed by three days for every 100 meters as you climb the mountain. Therefore when wild
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一定义:有一个角是直角的平行四边形是矩形二性质 1.矩形的四个角都是直角 2.矩形的对角线相等三判定 1.有一个角是直角的平行四边形是矩形 2.对角线相等的平行四边形是矩形 3.有三个角是直角的四边形是矩形 四直角三角形斜边上中线的性质
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