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(一)初中部分(100分钟作完) 1、下列十条结论,你如果认为正确,就在后面的( )内打一“√”;如果不正确,就打个“×”,再在下面说明理由。或者加以更正。 (1)任何有理数的平方都是正数。( ) (2)任何实数的绝对值都大于0。( ) (3)((1-a)~2)~(1/2)=1-a ( )
(1) Part of the junior high school (100 minutes) 1. The following ten conclusions are that if you think it is correct, you will hit a “√” in the following (); if it is not correct, you will make a “×” and explain it below. reason. Or correct it. (1) The square of any rational number is positive. () (2) The absolute value of any real number is greater than 0. () (3)((1-a)~2)~(1/2)=1-a ()