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【单选题】
铰链四杆机构的三种基本形式是:A.
曲柄摇杆机构、双曲柄机构、双摇杆机构
B.
曲柄滑块机构、双曲柄机构、双摇杆机构
C.
曲柄滑块机构、机构、双摇杆机构
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反馈参考答案：
举一反三
【简答题】According to A. J. Jacobs, what’s the importance of sharing a family tree with almost all seven billion people on Earth?
【多选题】According to Dr. J, What is a new year's resolution?
A.
Something you do new
B.
Something better that you do to improve your life
C.
Something to improve yourself
D.
Something to make yourself a better person
【单选题】关于上颌第一前磨牙描述,错误的是
A.
颊面近中缘稍长，远中缘较短而突
B.
颊尖偏远中，舌尖偏近中
C.
舌面外形高点在舌1/3处
D.
牙合面呈轮廓显著的六边形
E.
近中面有来自牙合面的近中沟
【简答题】理论的主要内容有哪些?
【简答题】基坑排水的方法有 和 。
【单选题】Which statement is true according to J. K. Galbraith?
A.
Education helps increase national income more than tangible capital goods does.
B.
Investment in railways, dams, machine tools, etc. improves human intellect.
C.
Intellectual improvements increases national income more than money can do.
D.
Money spent on human beings is better than that in goods.
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