东风11型机车柴油机气缸盖的推杆体与推杆径向间隙限度为()。
A、0.1mm
B、0.15mm
C、0.2mm
D、0.25mm
参考答案:C
(2013·浙江五校二模)—Hi, Mum. I got promoted for my wonderful performance in my work.
—________
A.Congratulations!
B.Best wishes.
C.Good luck.
D.Don't mention it.
什么是视频?简述视频图像的数字化过程。