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【单选题】
在凸轮机构中,主动件通常做A.
等速移动或者转动
B.
变速运动
C.
变速移动
D.
不规则运动
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【简答题】Read the following paragraphs and answer the quesions. Both animals and people respond positively to rewards. as experiments have shown, rats in a Skinner box will systematically press a lever in orde...
【单选题】Which of the following specific purpose statements is NOT likely to be handled well in the time allotted for classroom speeches?
A.
To inform my audience about the rise and fall of ancient Rome.
B.
To persuade my audience to convert to vegetarianism.
C.
To inform my audience of the history, styles, and cultural impact of qipao.
D.
To inform my audience about the role of technology in Chinese history.
E.
:C
F.
:单选题
G.
r>18、Which of the following tips for central idea is false?
H.
Make sure the central idea is not too specific.
I.
Express the central idea as a full sentence.
J.
State the central idea as a declarative sentence, not as a question. K. Avoid figurative language in the central idea.
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【单选题】下列对文中提到的有关《但以理书》的理解,不符合文意的一项是 ______
A.
是《圣经》旧约的一卷书 。
B.
马丁 ·路德在《但以理书》注释中说：“上帝仅仅是一个人寄托信任、忠诚、希望、仁爱之所在，如果寄托得真实，那么上帝一定也是真实的；如果寄托虚假，那上帝也是虚幻的” 。
C.
但以理是一个地方的名字。
D.
本书目的在表明以色列的神如何在异教国家中得荣耀
【简答题】构件的自由度是指构件__________的种类;机构的自由度是指维持确定运动所必需的___________。
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