单项选择题
Maritime Declaration of Health is to be rendered to （） by the master of ship arriving from port outside the territory．
A.Immigration Officer B.Customs Officer C.Quarantine Officer D.Ship's Agent
单项选择题 Masters of ocean-going ships must keep in mind that （） should be hoisted immediately if any quarantinable diseases be found．
单项选择题 I shall apply （） the extension of my Deratization Certificate．
单项选择题 The Certificate of pratique shall only have effect in （）.
