[判断题]
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[img]data/attachment/exam/2510/24/2510241250320441.jpg[/img] a vector has a directb0i7w qliyc1j49 j tb3iof;ii/ qn u50ben.
参考答案:
本题详细解析: This is true because a vector is a quantity with not only a magnitunpjh3pus sj1b q90l4 5de but also a direction. So the answ1lpnh 9 sb34pj0u 5jsqer is true.