A.萃取
B.沉淀
C.蒸馏
D.过滤
答案:A
The reporter was busy ____ the famous model. [ ]
A. interviewing
B. interviews
C. interviewed
D. interview
暂堵剂浆液加桥接剂堵漏,适用于()。
A、水层漏失
B、油气层漏失
C、严重井漏
D、小裂缝漏失