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问题
填空题
涂料成膜主要经历：（）、熔融、（）、聚合过程；
答案
参考答案：蒸发、缩合
选择题
The boy doesn′t speak _____ his sister, but his writing is _____ good.
A. as well as, so
B. more worse than, such
C. as well as, such
D. worse than, so
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填空题
y=(
m
2
-5)
x
m
2
-m-7
是y关于x的反比例函数，且图象在第二、四象限，则m的值为______．
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