Mariners are FIRST warned of serious defects or important changes to aids to navigation by means of（）.

Temperature and moisture characteristics are modified in a warm or cold air mass due to （）.

与表达式职称="教授" OR 职称="副教授"等价的SQL表达式为职称（）（"教授"，"副教授"）或职称（）"%教授"

Periodic publications notifying changes in，or additions to，previously published navigational data are（）.

The vowel is produced without (or with little) restriction during its production and is always voiced.（）

（）is entitled to enter into，with a shipper，any agreement，stipulation，condition，reservation or exception as to the responsibility and liability of the carrier or the ship for the loss of or damage to，or in connection with，the custody and care and handling of the goods prior to the loading on，and subsequent to the discharge from，the ship on which the goods are carried by sea.

Consonant sounds can be either （）or（）,while all vowel sounds are （）.

The goal, which they are unlikely to live to see , is tocure, prevent or manage all diseasesin the next 80or so years.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

（）are liable to be stoten, pilfered or may damaged due to improper handing or stowage.

Periodic publications notifying changes in，or additions to，previously published navigational data are（）.

Compensated flow control or constant flow valves are used in hydraulic systems to（）