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【单选题】
半交叉式传动用于两轴轴线既不平行又不的场合,其最大传动比是( )。A.
3
B.
4
C.
5
D.
6
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反馈参考答案：
举一反三
【简答题】阅读理解。 What looks like a black hole, behaves like a black hole, but is bigger than a black hole? Two black holes! Astronomers last week discovered a pair of enormous black holes far out in the galaxy t...
【单选题】Why was Anthony Shee, a flight attendant with US Air Inc., mistaken for a pilot?
A.
Because he always wore a pilot's uniform.
B.
Because he told people he was a pilot instead of a flight attendant.
C.
Because he wants to be a pilot,
D.
Because men in women-dominated fields sometimes find themselves mistaken for higher-status professionals.
【单选题】Look at the panda. It's ______________. [ ]
A.
a black and white
B.
black and white panda
C.
black and white
【单选题】_are planning to go on vacation.
A.
Black’s
B.
A Black’s
C.
The Black’s
D.
The Blacks
【简答题】听短文，在横线上填写相应的称呼或名字。 Henry Black __ 1 __ Frank Black Alice Black __ 2 __ __ 3 __ Devin Black __ 5 __ __ 4 __ sister
【简答题】Black-Scholes模型(Black-Scholes model)
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