The carbon deposits on the piston crown and in the ring grooves （）.<br>A:should be scraped<br>B:should be derusted<br>C:should be drilled out<br>D:to be brushed off

The carbon deposits on the piston crown and in the ring grooves （）.
A:should be scraped
B:should be derusted
C:should be drilled out
D:to be brushed off

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:【10245188】个 (题库试题定时更新)