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【单选题】
三线螺纹,螺距p=1.5mm,则螺纹导程S= ( ) mmA.
0.5
B.
1.5
C.
3
D.
4.5
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举一反三
【单选题】We are all proud of the great changes in Beijing. We're sure Beijing will be even ________ tomorrow. [ ]
A.
good
B.
better
C.
best
D.
the best
【单选题】We‘re not sure if it ________ tomorrow. If it ________, we won't climb the South Hill. [ ]
A.
will snow; snows
B.
will snow; will snow
C.
snows; snows
D.
snows; will snow
【单选题】I have good news for________. _______ is good news.
A.
you, It
B.
your, It
C.
you, They
D.
they, It
【单选题】We’re sure to win the entrance examination ___________ next year.
A.
held
B.
being held
C.
to be held
D.
having been held
【单选题】—Mr. Smith always has _______ to tell us. [ ]
A.
some good pieces of news
B.
some pieces of good news
C.
some good piece of news
D.
some piece of good news
【单选题】We're proud of the great changes in Xining, and we' re sure it will be even _______ tomorrow. [ ]
A.
good
B.
better
C.
best
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