[判断题]
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[img]data/attachment/exam/2510/24/2510241250320441.jpg[/img] a vector has a directc)u67cv /tt rdkpjnfo 2;e9l3/5i kegion.
参考答案:
本题详细解析: This is true because a vector is a quantity with not only a magnitude but als u0 6u90.xs)n/;buut*oaspi r2 vtf tno a direction. So the answer is true.psx;sub * nivt9a0f6u)n0ou rt2/ .tu