题目内容
The western parents think they are not only thetrusteeof their children, but also their creator.
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Eighteen-year-old Jewish children will be responsible for all their behaviors and are treated as an adult.
Chinese believe that when people die, their body turns to dust and ashes and the soul goes up to heaven.
Chinese culture and western culture have contrasting views on time.
一载有电流I的细导线分别均匀密绕在半径为R和r的长直圆筒上形成两个螺线管，两螺线管单位长度上的匝数相等．设R = 2r，则两螺线管中的磁感强度大小BR和Br满足
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