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【判断题】
血浆中分子量最小的蛋白是纤维蛋白原。A.
正确
B.
错误
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举一反三
【单选题】Not until he promised to return it to me as soon as possible ____ my electronic dictionary to my classmate.
A.
had I lent
B.
did I lend
C.
I had lent
D.
I lent
【简答题】在《证明二》一章中，我们学习了很多定理，例如：①直角三角形两条直角边的平方和等于斜边的平方；②全等三角形的对应角相等；③等腰三角形的两个底角相等；④线段垂直平分线上的点到这条线段两个端点的距离相等；⑤角平分线上的点到这个角两边的距离相等、在上述定理中，存在逆定理的是______（填序号）
【单选题】He has changed so much. Not until he walked to me ________ him. [ ]
A.
I recognized
B.
did I recognize
C.
didn't I recognized
D.
hadn't I recognized
【单选题】He should______be allowed to get up until he has completely recovered from his illness.
A.
in some cases
B.
in any case
C.
in case
D.
in no case
【简答题】Put the story in order. a where he learnt to read and write. b He stayed there until he was six, c When Tom was three, d and then he went to college. e After that, he went to s...
【简答题】数学小知识： “勾股定理”是指在一个直角三角形中，两条直角边的平方和等于斜边的平方．例如：两条直角边的长分别为3、4，则3 2 +4 2 = 5 2 ，即斜边的长为5． 已知图中两条直角边的长度，求出图中以斜边为直径所作圆的面积．
【单选题】I ______ until he told me to.
A.
started
B.
hadn't started
C.
didn't start
D.
would start
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