题文
已知非零向量a，b满足|a|=1，|a-b|=![已知非零向量a，b满足|a|=1，|a-b|=，a与b的夹角为120°，则|b|= [ ]A.2B.2C.D.1](https://www.mshxw.com/file/tupian/20210916/f461dd39a73153dd507a9a862ec623f0.gif "已知非零向量a，b满足|a|=1，|a-b|=，a与b的夹角为120°，则|b|= [ ]A.2B.2C.D.1")
，a与b的夹角为120°，则|b|=
[ ]
A.2![已知非零向量a，b满足|a|=1，|a-b|=，a与b的夹角为120°，则|b|= [ ]A.2B.2C.D.1](https://www.mshxw.com/file/tupian/20210916/7ffaae38a5e909aa3d502aa815bbaf2a.gif "已知非零向量a，b满足|a|=1，|a-b|=，a与b的夹角为120°，则|b|= [ ]A.2B.2C.D.1")
B.2
C.
![已知非零向量a，b满足|a|=1，|a-b|=，a与b的夹角为120°，则|b|= [ ]A.2B.2C.D.1](https://www.mshxw.com/file/tupian/20210916/8394dfb44fc553060114d627d76e5c22.gif "已知非零向量a，b满足|a|=1，|a-b|=，a与b的夹角为120°，则|b|= [ ]A.2B.2C.D.1")
D.1 题型：未知 难度：其他题型
答案
D解析
该题暂无解析
考点
据考高分专家说，试题“已知非零向量a，b满足|a|=1，.....”主要考查你对 [向量模的计算 ]考点的理解。，a与b的夹角为120°，则|b|=
B.2
C.
D.1 题型：未知 难度：其他题型
题文
已知非零向量a，b满足|a|=1，|a-b|=[ ]
A.2答案
D解析
该题暂无解析
考点
据考高分专家说，试题“已知非零向量a，b满足|a|=1，.....”主要考查你对 [向量模的计算 ]考点的理解。上一篇 向量=，=10，，则[ ]A． B． C．5 D．25
下一篇 When a first-time father saw his newborn son, he immediately noticed the baby's
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