文档介绍：具有相反意义的量 1、意义相反 2、都是数量 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. ,含有相反意义的两个量是() ? A. 盈利 1千元和收入 2千元? B. 上升 8米和后退 8米? C. 存入 1千元和取出 2千元? D. 超过 2厘米和上涨 2厘米 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 有理数的分类有理数正有理数零负有理数正整数正分数负整数负分数有理数有理数整数整数分数分数正整数正整数零零负整数负整数正分数正分数负分数负分数 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 下列说法正确的是( ) ? A. 正整数和负整数统称整数。? B. 有理数分为正有理数和负有理数。? C. 有理数是指整数、分数、正有理数、负有理数和零这五类。? D. 整数和分数统称为有理数。 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 判断题(1)整数一定是自然数( ) (2)自然数一定是整数( ) (3)不存在既不是正数,也不是负数的数() (4)0 ℃表示没有温度() (5)如果 a是正数,那么-a一定是负数() Evaluation only. Evaluation only. Created with