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【简答题】
36塑料按性能及用途可分为____,____,____。
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反馈参考答案：
举一反三
【单选题】Which is true according to the passage?
A.
The shop was on the Second Road.
B.
The boy was 18 years old.
C.
The boy was not in high spirit.
D.
The writer entered the shop by chance.
【单选题】It remains to be seen what effects the new educational reform will _________ students.
A.
make on
B.
take on
C.
have on
D.
get on
【简答题】caused the accident remains unknown.（That/What）A. What
【简答题】函数z=2x 2 +y 2 在点(1，1)沿该点的梯度方向的方向导数为______
【简答题】PNP 型晶体三极管工作放大区时,发射结和集电结的工作状态() A、 发射结和集电结都正偏 B 、发射结和集电结都反偏 C 、发射结正偏、集电结反偏 D 、发射结反偏、集电结正偏
【单选题】Since he and I both work in the same hospital, I can hardly avoid ____ him.
A.
to meet
B.
to have met
C.
having met
D.
meeting
【简答题】Both she and I ____watching TV when he came back. (was, were)
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