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> 如果,则()A.a<B.a≤C.a>D.a≥-八年级数学
如果,则()A.a<B.a≤C.a>D.a≥-八年级数学
题目简介
如果,则()A.a<B.a≤C.a>D.a≥-八年级数学
题目详情
如果
,则( )
A.a<
B.a≤
C.a>
D.a≥
题型:单选题
难度:偏易
来源:不详
答案
B
因为二次根式
≥0,所以1-2a≥0,解得a≤
故B选项正确。
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题目简介
如果,则()A.a<B.a≤C.a>D.a≥-八年级数学
题目详情
答案