test_copy1012 (id: 0b7bbc175)

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[判断题]
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a vector has a directit0;, 0b0drwzwh w, c0 wegwr4son.1q6o ell .)vmi

参考答案: 


本题详细解析:
This is true because a vector is a quantity with not only a magnitm4 e/nm94j voz /wyyhp1unu((ude but also a ( /4mvzje u noy /9wh(p4mn1yudirection. So the answer is true.