A and B corresponding to numbers 7 and b respectively, and the distance between A and B is less than 10.Let m=5−2b, then the range of the value of m is( ). (英汉词典:number axis 数轴;point 点;corresponding to 对应于…;respectively 分别地;distance 距离;less than 小于;value 值,...
每一个实数都能用有理数去逼近到任意精确的程度,这就是有理数的稠密性。The rational points are dense on the number axis.
每一个实数都能用有理数去逼近到任意精确的程度,这就是有理数的稠密性。The rational points are dense on the number axis.
in the Fig,Points A, B and C on the number axis represent nonzero rational number a,b,and c respectively.If |a|+|a+b|+|b−c|=−c,then the point represent 0 is( ).a LC BAA.on the right side of A B.on the left side of C C.between B and C D.between B and A ...
Almost all points on the real axis can be original points of shock waves[J]. LI Bang-He Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijnig 100190, China.Science China(Mathematics). 2011(01)Li B H. Almost all points on the real axis can be original points ...
A. (2, 0) B. (0, 2) C. (-2, -2) D. (2, 2) 相关知识点: 试题来源: 解析 A。解析:在平面直角坐标系中,点在 x 轴上时,其纵坐标为 0。点(2, 0)的纵坐标为 0,所以在 x 轴上。选项 B 点(0, 2)在 y 轴上;选项 C 点(-2, -2)不在坐标轴上;选项 D 点(2, 2)不在坐...
来这里看吧，很多图片不方便上传 http://www.cnblogs.com/iMath/p/5946371.html 我摘录的，希望对...
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10.On the number axis,there are two points A and B corresponding to numbers 7and b respectively,and the distance between A and B is less than 10.Let m=5-26,then the range of the value of m is((A)-1m39.(B)-39m1.(C)-29m11.(D)-11m29.(英汉词典:number axis数轴;point点;corres...
Points A and B are on the number line in such a way that A corresponds to 0.625 and B corresponds to 0.637 . If P is the midpoint of bar(AB) , and Q is on the