Additives _____ protective layers on metal surfaces guarding them against corrosion.A.dama

职业资格 专四 已帮助 人

Additives _____ protective layers on metal surfaces guarding them against corrosion.

A.damage

B.form.

C.dissolve

D.contaminate

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。