[判断题]
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[img]data/attachment/exam/2510/24/2510241250320441.jpg[/img] a vector has a direc.g.;kty bdg f:tion1tdp kc*f- jj*.
参考答案:
本题详细解析: This is true because a vector is a quantity with not only a magnirb8bzskjk5i/-k g 9r3tude but also a di/jb3b 98r k 5g-kszrikrection. So the answer is true.
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