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【单选题】
甘汞电极的电极电势决定于 ( ) 浓度。A.
Hg
B.
． Hg 2 Cl 2
C.
Cl -
D.
H +
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举一反三
【单选题】If you don’t speak good English,you will be at a big when you try to get a good job.
A.
disadvantage
B.
loss
C.
bend
D.
shortcoming
【单选题】To be a good teacher, you need some of the gifts of a good actor: you must be able to hold the attention and interest of your audience; you must be a clever speaker, with a good, strong, pleasing voic...
A.
How to become an ordinary teacher.
B.
What a good teacher should do.
C.
What teachers and actors could learn from each other.
D.
The similarities and differences between a teacher's work and an actor's.
【单选题】-- A good book is a good friend. You can get the help you need from it. ----- You said it. ___________.
A.
I agree
B.
All right
C.
I disagree
D.
That’s a good idea
【简答题】( )是信息组织和信息检索的基础。
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