test_copy1012 (id: 0b7bbc175)

[判断题]
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a vector has a direction0 rg(;y m2 fpguuq1;gi.ucz e:pwu)+zqq mz8 0g3/o4d1hc.j zi

参考答案: 


本题详细解析:
This is true because a vector is a quantity with not only a magnitude but alr f-cd6qr(ms: so a direction. Sodcf(:r -r 6mqs the answer is true.