test_copy1012 (id: 0b7bbc175)

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[判断题]
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a vector has a directionk8yu-avyz4 0au z r196q rwt*j/tf1iw.f( pdcdak- u(7y: jyu,

参考答案: 


本题详细解析:
This is true because a vector is a qu)u9 u.+nburh nantity with not only a magnitude but also a direction. So the abu)9nun +u. hrnswer is true.