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【单选题】
对于平行轴定轴轮系,其总传动比的正负号决定于该轮系中外啮合的齿轮对数m,m是偶数为正,首末两轮转向( )。A.
相反;
B.
相同。
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举一反三
【单选题】_________ is the only knight to have found the Holy Grail.
A.
Mordred
B.
Lancelot
C.
Galahad
【简答题】What does "holy grail" mean?
【单选题】Which of the following "ough" is pronounced "əʊ"?
A.
hicc ough
B.
pl ough
C.
d ough
D.
thr ough
E.
r ough
【单选题】关于埋弧焊的原理,下列说法不正确的是( )。
A.
埋弧焊的电弧是掩埋在颗粒状的焊剂下面的
B.
埋弧焊是靠焊丝引弧的
C.
埋弧焊的电弧保护方式是气渣联合保护
D.
埋弧焊都是自动焊
【单选题】The boss say to the secretary, “ If you work well, you _____ have a rise.”
A.
shall
B.
would
C.
must
D.
ought
【单选题】Which is NOT a possible traditional form of the Holy Grail?
A.
cup
B.
stone
C.
goblet
D.
womb
【单选题】Which is NOT the reason for many people searching for the Holy Grail in the medieval ages?
A.
It could heal wounds.
B.
It could make people forever young.
C.
It could give people happiness.
D.
It could give people power to control the world.
【单选题】It is wise to remember that you do not have to buy anything from any salesperson. You ought to buy only those things you really need or want and can【76】. Try not to let your personal feelings about th...
A.
afford
B.
find
C.
possess
D.
gain
【单选题】What does the phase 'the holy grail'(Line 4, Para.7)probably mean?
A.
Chalice used by Christ at the last supper.
B.
The object of any prolonged endeavor.
C.
The thing that people can rarely get.
D.
The thing that people feel proud of.
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