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【判断题】
x(H2S)=40PPb的含义是 H 2 S 气体 在大气中浓度为10亿分之40。A.
正确
B.
错误
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【简答题】材料有哪些种类,常用的金属材料有哪几种?
【简答题】常用的金属材料有哪些？
【简答题】Throwing criminals in prison is an ancient and widespread method of punishment, but is it a wise one? It does seem reasonable to keep wrongdoers in a place where they find fewer opportunities to hurt ...
【单选题】---How do you handle this difficult problem? ---The way _______the problem is to find out who really cares about it. A. to solving B. of solve C. solve D. to solve To my_______, I think you can...
A.
D
B.
2. B
C.
3. A
D.
4.B
E.
5.D
【简答题】工业中常用的非金属材料有哪些？陶瓷材料有哪些用途？
【单选题】---How do you handle this difficult problem? ---The way _______the problem is to find out who really cares about it. A. to solving B. of solve C. solve D. to solve To my_______, I think you can...
A.
D
B.
2. B
C.
3. A
D.
4.B
E.
5.D
【多选题】It is not really an issue of which system is better, but to the uninitiated, the examples above from the new system are certainly less misleading than those of the old system.(time :1:20）
A.
those who have less special knowledge of sth
B.
those who are deficient in relevant experience
C.
the learned person
D.
the wise men
【单选题】设某二叉树中共有140个结点,其中有40个度为1的结点。则
A.
该二叉树中有51个叶子结点
B.
该二叉树中有51个度为2的结点
C.
不可能有这样的二叉树
D.
该二叉树中有50个度为2的结点
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