One of the requirements for a general average act is（）.

单项选择题No jettison of cargo shall be made fair as（）unless such cargo is carried in accordance with the recognized custom of the trade.

A.General Average
B.Charter Party
C.Bill of Lading
D.Policy of Cargo Insurance

单项选择题No jettison of cargo shall be made fair as（）unless such cargo is carried in accordance withthe recognized custom of the trade.

A.General average
B.Charter Party
C.Bill of Lading
D.Policy of Cargo Insurance

单项选择题No jettison of cargo shall be made（）as general average unless such cargo is carried in accordance with the recognized custom of the trade.

A.sure
B.fair
C.firm
D.good

单项选择题Measures taken by the Assured or the Underwriters with the object of saving，protecting or recovering the subject-matter insured shall not be considered as（）.

A.sue and labor
B.a waiver or acceptance of abandonment or otherwise prejudice the rights of either party
C.general average acts
D.acts reasonable for the purpose of averting or minimizing a loss

单项选择题Loss or damage caused by cutting away wreck or parts of the ship which have been previously carried away or are effectively lost by accident shall not be made（）as general average．

A.firm
B.sure
C.good
D.fair