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【单选题】
力平移后,增加的力偶的方向( )A.
是顺时针的
B.
是逆时针的
C.
由新的作用点的原作用点的力矩方向决定
D.
由对新作用点的力矩方向决定
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皮皮学刷刷变学霸
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【简答题】阅读理解 Popeye the Sailor first became a popular cartoon in the 1930s.The sailor in that cartoon ate lots of spinach to make him strong. People watched him, and they began to buy and eat a lot more spina...
【单选题】A mailman in America has taken ________ from the popular children’s cartoon and carries his deliveries out with a cat accompanying him.
A.
ambition
B.
inspiration
C.
accommodation
D.
administration
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