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> 下列各式中正确的是[]A.B.=±3C.(﹣)2=4D.3﹣=2-八年级数学
下列各式中正确的是[]A.B.=±3C.(﹣)2=4D.3﹣=2-八年级数学
题目简介
下列各式中正确的是[]A.B.=±3C.(﹣)2=4D.3﹣=2-八年级数学
题目详情
下列各式中正确的是
[ ]
A.
B.
=±3
C.(﹣
)
2
=4
D.3
﹣
=2
题型:单选题
难度:中档
来源:广东省期末题
答案
A
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题目简介
下列各式中正确的是[]A.B.=±3C.(﹣)2=4D.3﹣=2-八年级数学
题目详情
B.
C.(﹣
D.3
答案