Should any case or suspected case of quarantinable disease，or any case of eruptive disease or any death be discovered，the local Quarantine Officer must be（）immediately.

Ships changing their location within the port limits are also required to report their new （）.

A.bearings
B.distances
C.sections
D.positions

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Please return the notice to me（）due time.

A.at
B.on
C.of
D.in

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