Although the wind has _____, the rain remains steady. so you still need a raincoat.[ ]

A. turned up

B. gone back

C. died down

D. blown out

对游标卡尺的精度0.02mm的解释，其中（）的说法是正确的。

A、游标卡尺的最大误差值

B、游标卡尺的误差为0．2mm

C、游标卡尺每测1mm差0．02mm

D、游标卡尺能测准1mm的1／50