test_copy1012 (id: 0b7bbc175)

admin

[判断题]
xxxxxxxxx [img]data/attachment/exam/2510/24/2510241250320441.jpg[/img]
a vector has a directd9v whas, 11av5my)- ov iyk)tleg+m2 ion.1eo6ak(c8x:k 8ost u t

参考答案: 


本题详细解析:
This is true because a vector is a quantity with not only a m0bt48jt*eodau:is b. fn7 my :agnitude but also ad.s i :yjb b*a :untto4me807f direction. So the answer is true.