test_copy1012 (id: 0b7bbc175)

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[判断题]
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a vector has a direction.;ziu ql*8.i8fmby* y zlk0h u.5esqt5-f-jsc

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 alx 5fp wf5,)uytso a direction. So the ans5)yfw ,xt5fup wer is true.

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