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【简答题】
山梨酸是使用最多的防腐剂，它对______的生长发育起抑制作用。 (A)霉菌和细菌和酵母 (B)霉菌、酵母菌和好氧细菌 (C)酵母、细菌和霉菌 (D)酵母、霉菌和细菌
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反馈参考答案：
举一反三
【单选题】– Can we get the computer before Wednesday? – _____. If it is 30 kilometers, we can make it, but if farther away, it will be on Thursday.
A.
I don’t know for sure
B.
Well, that all depends
C.
It’s up to you, sir
D.
There’s no need to rush
【单选题】we can’t get seems better than we have.
A.
That, what
B.
That, which
C.
What, what
D.
What, that
【简答题】求解下列不等式:(1) ;(2).
【多选题】What can we get through practising shadowing?
A.
We can get the fully concentrated state-of-mind when juggling between different tasks.
B.
We can learn to listen, comprhend, and repeat.
C.
We can learn to allocate our limited mental energy wisely.
【单选题】．From what we get，we can ________ a living；what we give，however，makes a life．
A.
get
B.
make
C.
take
D.
have
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