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【单选题】
有两个半径相同、质量相等的细圆环A和B,A环的质量分布均匀,B环的质量分布不均匀,它们对通过环心并与环面垂直的轴的转动惯量分别为 和 ,则( )A.
>
B.
<
C.
=
D.
无法确定
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举一反三
【单选题】After all, ______ makes a new invention such a wonderful thing is ______ it allows us to do something we could not do before. [ ]
A.
what ; what
B.
that ; that
C.
what; that
D.
that; what
【单选题】初孕妇,30岁。孕37周,下肢水肿1周,头痛12小时,无恶心、呕吐。查体:血压160/100mmHg,下肢水肿+++,尿蛋白+,透明管型0-2/HP。下列不是该病的诱因是
A.
季节变化
B.
吸烟
C.
精神因素
D.
贫血
E.
身材矮胖
【单选题】There is _______ in this book. So we should read it in the morning .
A.
anything interesting
B.
something interesting
C.
interesting something
D.
nothing interesting
【单选题】—Is there_____new at the International Motor Show? —Yes,____is new.
A.
anything; something
B.
something; anything
C.
nothing; anything
D.
anything; everything
【单选题】--- Is there ___________ to tell us? --- No, nothing.
A.
something amazing
B.
anything amazing
C.
something amazed
D.
anything amazed
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