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【判断题】
只要保持平面力偶的力偶矩大小和转向不变,可同时改变力偶中的力的大小和力偶臂的长短而不影响其对刚体的作用效应。A.
正确
B.
错误
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举一反三
【简答题】The type of account she wants: __________.
【简答题】A．She wants to earn extra money. B．She wants to get practical experience. C．She wants to take a chemistry course. D．She wants to quit her job in the chemistry lab.
【简答题】A．She wants to pay it by cash. B．She wants to ask her friends to pay. C．She wants to pay it later. D．She wants to cut down the price.
【简答题】A．She wants to order a filing cabinet. B．She wants to keep her room tidy. C．She wants to practice spelling and calculation. D．She wants to find any interesting story in it.
【单选题】( )是体现个人道德品质高低的一个概念,通常指的是人们通过道德教育和道德修养在道德认识、道德情操、道德意志、道德信念和道德行为等方面所达到的程度和水平。
A.
道德觉悟
B.
道德境界
C.
道德规范
D.
道德修养
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