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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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举一反三
【简答题】素质教育中，学生自身发展的落脚点和最终体现是()。 A.学生的个性发展 B.学习成绩的提高 C.升学 D.终身学习的能力
【单选题】[3-88]According to Buys Ballot' s law, when an observer in the Northern Hemisphere experiences a northwest wind, the center of low press
A.
northeast
B.
west-southwest
C.
northwest
D.
south-southeast
【单选题】In the Northern Hemisphere, a wind that shifts counterclockwise is a ______.
A.
veering wind
B.
backing wind
C.
reverse wind
D.
chinook wind
【单选题】In the Northern Hemisphere, when the wind at your location is northerly, the low pressure center causing the wind is located to your .
A.
NNW
B.
WSW
C.
ESE
D.
SSW
【单选题】This math problem is _____ that one. [ ]
A.
not so easy as
B.
more easy than
C.
easy than
D.
as easier as
【简答题】In most languages, a greeting is usually followed by “small talk”. Small talk means the little things we talk about at the start of a conversation. In English-speaking countries people often make smal...
【单选题】Have you finished your homework? The lesson is ______ than the last one.
A.
easy
B.
much easier
C.
very easier
D.
more easier
【简答题】One thing that every dog needs to know how to do is sit. Teaching a dog to sit is probably the easiest trick in the book. Dogs learn to sit by praise. You must first introduce them to what sitting is....
【单选题】According to Buys Ballot' s law, when an observer in the Northern Hemisphere experiences a northwest wind, the center of low pressure is located to the _______ .
A.
northeast
B.
west-southwest
C.
northwest
D.
south-southeast
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