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【多选题】
一个小球由A点自由下落时，相继经过B、C两点，如图所示，AB=BC（忽略空气阻力），则下列分析中正确的是A.
物体在下落过程中，一定受非平衡力的作用
B.
在AB、BC两的平均速度相等
C.
在AB、BC两重力做功相等
D.
在A、B、C三点处物体具有的机械能相等
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反馈参考答案：
举一反三
【简答题】下列选项中哪个是SPI的时钟引脚( )
【简答题】结合课文所学的内容,画出你心目中的李寄、婴宁、探春的形象(三个人物选一个即可)
【单选题】Where there are multiple accident victims, which injuries should be the FIRST to receive emergency treatment?
A.
Major multiple fractures
B.
Eye injuries
C.
Back injuries with spinal-cord damage
D.
Airway and breathing difficulties
【单选题】听力原文： In the 74-year history of the Academy Awards, women have been nominated for best director exactly twice. Yet the motion picture academy would never consider creating a category for “best directr...
A.
Hollywood and Academy awards.
B.
Hollywood and sexual separation.
C.
Actors and actresses.
D.
Racial discrimination and sexual difference.
【简答题】Why is setting goals important? Because goals can help you do, be, and experience everything you want in life. __71 just letting life happen to you, goals allow you to make your life happen. Successfu...
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