最基本的保护层是油漆。()A、The principal protective coating is paint.B、The principal protective coating is cement wash.C、The principal protective coating is bitumen.D、The principal protective coating is varnish.
最基本的保护层是油漆。()
- A、The principal protective coating is paint.
- B、The principal protective coating is cement wash.
- C、The principal protective coating is bitumen.
- D、The principal protective coating is varnish.
相关考题:
单选题最基本的保护层是油漆。()AThe principal protective coating is paint.BThe principal protective coating is cement wash.CThe principal protective coating is bitumen.DThe principal protective coating is varnish.
单选题在车辆油漆质量不好或油漆保护层脱落处易发生()故障。A裂纹B弯曲变形C腐蚀D磨耗