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> 下列运算正确的是()A.(-2)0=0B.4=±2C.|-2|=2D.2-1=-2-数学
下列运算正确的是()A.(-2)0=0B.4=±2C.|-2|=2D.2-1=-2-数学
题目简介
下列运算正确的是()A.(-2)0=0B.4=±2C.|-2|=2D.2-1=-2-数学
题目详情
下列运算正确的是( )
A.(-2)
0
=0
B.
4
=±2
C.|-2|=2
D.2
-1
=-2
题型:单选题
难度:中档
来源:不详
答案
A、(-2)0=1,故选项错误;
B、
4
=2,故选项错误;
C、正确;
D、2-1=
class="stub"1
2
,故选项错误.
故选C.
上一篇 :
若(2x-1)0-1(1-x)2有意义,则x的
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题目简介
下列运算正确的是()A.(-2)0=0B.4=±2C.|-2|=2D.2-1=-2-数学
题目详情
答案
B、
C、正确;
D、2-1=
故选C.