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【单选题】
下列强电解质、弱电解质、非电解质的分类，正确的一组是（ ）A.
B.
C.
D.
强电解质 CH 3 COOH NaOH BaSO 4 CuSO 4 弱电解质 Al CH 3 COOH CaCO 3 NH 3 ·H 2 O 非电解质 CO 2 金刚石 水银 酒精
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举一反三
【单选题】17 Could you tell me ____ in your home town in winter? A. if it often snowed B. whether does it often snow C. if it often snow D. whether it often snows
A.
选择1
B.
选择2
C.
选择3
D.
选择4
【单选题】it is going to snow.
A.
It looks that
B.
It seemed as if
C.
It's seemed that
D.
It looks as if
【单选题】_______ does it snow so heavily in South China as it did in the winter of 2007. [ ]
A.
Usually
B.
Frequently
C.
Rarely
D.
Regularly
【单选题】When might it snow?
A.
This evening.
B.
Tomorrow morning.
C.
Tomorrow evening.
D.
This weekend.
【单选题】It costs 30 Euros to visit the aquarium in Valencia. You have to............... 30 Euros to visit the aquarium in Valencia.
A.
cost
B.
take
C.
pay
D.
worth
【简答题】选用方框中所给的句子补全对话，（有一项为多余）。 A. How are you? B. Does it snow there? C. It's very cold and quite windy. D. How cold it is! E. So it's nice and warm. F. What's the weather like in Sydney, Dad? Mr. White: He...
【单选题】( )资源中心是用来访问和维护资源中心库的工具。用资源中心进行哪种操作不正确?
A.
查找资源中心库中的零件
B.
在部件中插入资源中心库零件
C.
不能发布资源中心库中的零件、IParts或特征
D.
编辑放置在部件中的资源中心库零件
【多选题】资源中心是用来访问和维护资源中心库的工具。您可以用资源中心进行如下操作（）。
A.
查找资源中心库中的零件
B.
在部件中插入资源中心库零件
C.
更改资源中心库零件的参数
D.
编辑放置在部件中的资源中心库零件
相关题目：
【单选题】When might it snow?
A.
This evening.
B.
Tomorrow morning.
C.
Tomorrow evening.
D.
This weekend.
参考解析：
知识点：
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