test_copy1012 (id: 0b7bbc175)

[判断题]
xxxxxxxxx [img]data/attachment/exam/2510/24/2510241250320441.jpg[/img]
a vector has a directi+zng w0 2aj8ieon.v( rlfd )z ).hjvufh3)wxz56 g

参考答案: 


本题详细解析:
This is true because a vector is a quantity with,r ep3r;mpi m* not only a magnitude but also a direction. So the answer irre;3 pmimp*, s true.