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【单选题】
发酵液的 pH 的上升,特别是发酵后期,大部分的原因是由于A.
感染噬菌体
B.
菌体死亡并产生菌体自溶
C.
杂菌的感染
D.
代谢产物的积累
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【单选题】—What time do you usually get up? —_____. [ ]
A.
I usually get up in the morning.
B.
I usually get up on the morning.
C.
I usually get up at nine o'clock.
D.
I usually get up at nine forty o'clock.
【单选题】The toughest thing about success is ________ you have to keep on being a success.
A.
why
B.
when
C.
what
D.
that
【简答题】阅读理解。 Ma Li: Do you get up early in the morning, Ellen? Ellen: Yeah, I get up at six in the morning. After that I run. Then I take a shower and eat breakfast at seven. What about you? Ma Li: Me? I g...
【单选题】I used to early,but now I am used to late.
A.
getting up ,getting up
B.
getting up ,get up
C.
get up ,get up
D.
get up ,getting up
【单选题】The toughest thing about success is _______ you have to keep on being a success.
A.
that
B.
when
C.
what
D.
why
【简答题】Why is the race regarded as one of the toughest Marthon s in the world?(para1) 2、What did Cliff Young looked like?(para2) 3、How did the world-class athletes react?(para2) 4、Why did people laugh a...
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