[判断题]
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[img]data/attachment/exam/2510/24/2510241250320441.jpg[/img] a vector has a direcnthaapjn -z:4 xaq9) /tt,xnn 29swr 0aion.
参考答案:
本题详细解析: This is true because a vector is a quantity with not onlyjy elo-y :b):vhs3y/ u a magnitude but also a direction. So the answej/e -3sy o: yyu)lh:bvr is true.