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【判断题】
质量、长度、时间的测量结果都是随物体与观察者的相对运动状态而改变的。
A.
正确
B.
错误
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参考解析：
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【多选题】棱锥表面上的点的投影,可以采用 来求解。
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积聚性
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辅助平面
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辅助圆
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【多选题】棱锥表面上的点的投影,可以采用 来求解。
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积聚性
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辅助平面
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辅助圆
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【单选题】Rick: How long has your father _____ in your home?
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【单选题】How long has your brother ___ the army?
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【简答题】世界公认的的五大投资金币为,()的鹰洋金币,中国的()金币,()的克鲁格金币,澳大利亚的()金币以及()的枫叶金币
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【多选题】棱锥表面上的点的投影,可以采用 来求解。
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