A:attended
B:attained
C:attracted
D:attached
Kim is my ______ name and Miller is my ______ name.
一个质点沿x轴做直线运动,其位置坐标如下表:
t/s
0
1
2
3
4
x/m
﹣5
﹣3
7
15
则第几秒内质点的位移最小( )