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【多选题】
下列关于混凝土变形模量的说法，不正确的是()。A.
应力与塑性应变的比值
B.
应力与总应变的比值
C.
应力应变曲线切线的斜率
D.
应力应变曲线原点切线的斜率
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知识点：
皮皮学刷刷变学霸
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【简答题】阅读理解。 Most American families are smaller than the families in other countries. Most American families have one or two parents and one or two children each. When children are young, parents often ask t...
【简答题】完形填空。 Most American families are smaller than the families in other countries. Most American families have one or two 1 and one or two children each. Children in the U.S. will 2 their parents' home wh...
【简答题】阅读理解。 Most American families are smaller than the families in other countries. Most American families have one or two parents and one or two children each. Children in the US will leave their parents'...
【简答题】阅读理解。 Most American families are smaller than the families in other countries. Most American families have one or two parents and one or two children each. Children in the US will leave their parents'...
【多选题】图和已标注的尺寸同时放大2倍，其结果说法错误的是（ ）。
A.
尺寸值是原尺寸的2倍
B.
尺寸值不变，字高是原尺寸的2倍
C.
尺寸箭头是原尺寸的2倍
D.
原尺寸不变
【单选题】弥漫性毛细血管内增生性l肾小球肾炎电镜下病变特点是( )
A.
肾小球毛细血管基底膜内皮细胞下见致密沉积物
B.
肾小球毛细血管基底膜上皮侧见驼峰状致密沉积物
C.
脏层上皮细胞足突融合
D.
肾小球毛细血管基底膜有缺损
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