下列图象中，表示物体做匀加速直线运动的是（）
A.
B.
C.
D.
参考答案：C
解析：速度时间图像的斜率表示加速度的大小，由此可知C对；
— Have you been wasting time on computer games again?
— _____. I've been studying a lot and I need a break. [ ]
A. No way
B. Not really
C. I don't agree
D. I couldn't agree more
用游标卡尺量测比分厘卡更准确。（）
