A、橡皮版印刷 B、凸版印刷 C、笨胺印刷
A、左對(duì)齊 B、右對(duì)齊 C、居中對(duì)齊 D、小數(shù)點(diǎn)對(duì)齊
A.255,255,255 B.0,0,0 C.100,100,100 D.128,128,128