单项选择题

The signal given to commence lowering the lifeboats is（）.

A.3 short blasts of the ship's whistle
B.1 short blast of the ship's whistle
C.3 long blasts of the ship's whistle
D.1 long blast of the ship's whistle

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单项选择题

The order to enter the lifeboats will be given from the（）.

A.bridge
B.forward station
C.aft station
D.any hold in which the stevedores are working

单项选择题

The operating cord on an inflatable liferaft should be renewed by（）.

A.removing the top half of the shell，cutting the line at its source，and renewing completely
B.cutting the line where it enters the case and replacing that portion
C.leaving the original line and tying another one to it so the two lines will take the strain
D.an approved servicing facility ashore

单项选择题

The number of flashlights required as lifeboat equipment on a seagoing barge is（）.

A.none
B.one
C.two
D.three