题文
已知△ABC是等腰直角三角形,∠C=90°,AB=2
,则

A.-4
B.4
C.2
D.-8 题型:未知 难度:其他题型
答案
A解析
该题暂无解析
考点
据考高分专家说,试题“已知△ABC.....”主要考查你对 [向量数量积的运算 ]考点的理解。
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