单项选择题
A.0.02mm B.0.12mm C.0.20mm D.0.22mm E.2.00mm
A.1:10 B.1:100 C.1:1000 D.1:10000 E.1:100000
A.结合膜 B.保护膜 C.防静电层 D.防光晕层 E.乳剂膜