Corrosion inhibitors and/or soluble oils are added to diesel engine cooling systems to （）<br>A:maintain low pH in the cooling water<br>B:reduce the cooling water temperature<br>C:increase cooling water hardness<br>D:form a protective film on metal surfaces

Corrosion inhibitors and/or soluble oils are added to diesel engine cooling systems to （）
A:maintain low pH in the cooling water
B:reduce the cooling water temperature
C:increase cooling water hardness
D:form a protective film on metal surfaces

出自：海船船员证

提示：
同一【IP】的非会员用户每天可免费获取10次答案

收藏本站【zk.995w.com】，下次访问不迷路

本站试题总数:【10244552】个 (题库试题定时更新)