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【单选题】
三个质量相同的物体甲、乙、丙,从同一高度H自由下落,与地面相碰,甲物体反弹高度接近H,乙物体反弹高度为 ,丙物体贴在地上没有反弹,则给地面冲量最大的物体是:( )A.
甲物体;
B.
乙物体;
C.
丙物体;
D.
不能确定。
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皮皮学刷刷变学霸
举一反三
【简答题】该课程的成绩评价体系怎么构成
【单选题】Why does the professor mention the coat of arms of Canada?
A.
To compare the symbolism to that of a totem pole
B.
To prove that the Haida live in Canada
C.
To argue that the Haida symbols are superior
D.
To place the events in chronological order
【简答题】Why does the writer want to place a large order of computers? Because he wants to equip the lab with computers to start______.
【单选题】Why does the author oppose to relocate the Barnes?
A.
The relocation means disrespect to the person who runs it.
B.
Architectures' complicated design will make the museum charmless.
C.
The spirit of the old Barnes will be gone in a different place.
D.
The multiple functions of the new Barnes will destroy the collection.
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