It is that reduce the BOD by converting the organic content of the sewage to a chemically and organically inert sludge（）<br>A:the bacteria<br>B:oxygen<br>C:oxidizing function<br>D:agitation function

It is that reduce the BOD by converting the organic content of the sewage to a chemically and organically inert sludge（）
A:the bacteria
B:oxygen
C:oxidizing function
D:agitation function

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:【10252701】个 (题库试题定时更新)