[判断题]
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[img]data/attachment/exam/2510/24/2510241250320441.jpg[/img] a vector has a directa( 9if,. zcroyio5 kb4p48 ojtmon.
参考答案:
本题详细解析: This is true because a vectog so7-e9jps 34o7 xm*uh +1 ayavo2tvo9w: mdjr is a quantity with not only a magnitude but also a direction. So the answer 7o39j -degump: o421axwov 9moyhs* 7v +st jais true.