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【判断题】
直线运动中,质点位移的大小与路程总是相等的。
A.
正确
B.
错误
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参考解析：
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【简答题】阅读理解。 Americans usually eat three meals a day. Breakfast usually comes before eight o'clock in the morning. They usually have eggs, some meat, bread, and coffee. Lunch is between twelve and one o'cloc...
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