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【判断题】
平面四杆机构的传动角在机构运动过程中是时刻变化的，为保证机构的动力性能，应限制其最小值γ不小于某一值。A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】I don't _________ any chance to further reduce our price.
A.
change
B.
see
C.
look
D.
meet
【简答题】企业生产的 是指厂商在生产要素市场上购买或租用他人所拥有的生产要素的实际支出。
【简答题】阅读理解。 Spending two or three hours playing outdoors each day can reduce a child's chance of becoming short- sighted, a research shows. It challenges (挑战) the belief that short-sightedness is caused by ...
【简答题】Spending two or three hours playing outdoors each day can reduce(减少)a child’s chance of becoming short-sighted（近视）,research shows . It challenges the belif that short-sightedness is caused by computer...
【单选题】The new measure will reduce the chance of serious injury in the event of an accident.
A.
e underlined part means _________.
B.
if an accident happens
C.
if an accident can be prevented
D.
before an accident
E.
during an accident
【简答题】10. It also ____
(reduce) your chance of getting diabetes.
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