Officers observe ships with a pair of ()(望远镜).
A、A.sextant
B、B.binoculars
C、C.compass
D、D.radar
A、A.sextant
B、B.binoculars
C、C.compass
D、D.radar
A、The quarantine officers B、Administrations C、The immigration officers D、The customs officers
A、发件箱中有kao@sina.com的邮件 B、发件箱中有shi@sina.com的邮件 C、已发送箱中有kao@sina.com的邮件 D、已发送箱中有shi@sina.com的邮件
A、drop and recreate the readonly tablespaces B、rename the readonly data files to their correct file names C、change the tablespace status from read/write to readonly D、recreate the readonly tablespace because it is automatically removed
A、increase the ship's officers' knowledge B、extend the ship's officers' knowledge C、improve the ship's cargo-handling equipment D、raise the working efficiency