一辆车以10米/秒得速度行驶与以4米/秒行驶时,哪个的惯性大?
1年前1个回答
1年前1个回答
你能帮帮他们吗
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Someone is ringing the doorbell. Go and see _____. [ ]
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The rescue team are considering _____ they can do more for the people _____ form the snow storm.
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She knew the _________ (重要性) of working hard and not just to do what she enjoyed.
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如图所示,在倒置的漏斗里放一个乒乓球,用手指托住乒乓球.然后从漏斗口向下用力吹气,并将手指移开,那么以下分析正确的是( )
1年前
1年前