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【单选题】
旋转机械产生振动的原因之一有旋转体( )A.
.不均匀
B.
.不一致
C.
.不同心
D.
.不同圆
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举一反三
【简答题】def f(): "The quick brown fox" return 1 f() print(f.__doc__[4:9])
【单选题】According to the passage, why does the author give details about each category?
A.
To illustrate which kind of studier is the best.
B.
To compare these three categories.
C.
To explain why some studiers get high grades.
D.
To suggest that crammers should spend more time on study.
【单选题】Circle out the word that doesn't belong to each category
A.
camper
B.
videographer
C.
podcaster
D.
blogger
【单选题】21 Indicate whether each phrase below describes a category for the exhibit or a process of photography. For each word, mark the correct box. Category Process (A) Buildings (B) Enlarging (C) Develo...
A.
Category —（ B ） Process — (A ) (C ) (D)
B.
Category —（ C ） Process — (A ) (B ) (D)
C.
Category —（ A ） Process — (B ) (C ) (D)
D.
Category —（ D ） Process — (A) (B ) (C)
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