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【多选题】
铰链四杆机构的组成有（ ）。A.
机架
B.
连杆
C.
连架杆
D.
凸轮
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反馈参考答案：
举一反三
【简答题】水平线的水平投影反映真实长度
【单选题】We must try our best, in ___________ words, we must make every effort.
A.
other
B.
others
C.
another
D.
the other
【简答题】完形填空。 Mike is my friend. He 1 the day with morning exercises. After morning exercises, he 2 English at home. It's time to 3 breakfast. His 4 habits are 5 good. He eats a lot of vegetables. He 6 ever e...
【单选题】We must relate our health to our everyday eating habits.
A.
mean
B.
end
C.
begin
D.
link
【单选题】We must know our strong and weak points_ we can improve our personalities.
A.
in case
B.
even if
C.
now that
D.
so that
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