For a sacrifice or expenditure to be the subject of general average contribution，there must be a danger common to（）.

单项选择题Deviation to save（）is always justified，unless it is expressly stipulated otherwise.

A.property
B.a vessel in danger
C.human life
D.freight and cargoes in danger

单项选择题Deviation is caused by（）.

A.changes in the earth's magnetic field
B.nearby magnetic land masses or mineral deposits
C.magnetic influence inherent to that particular vessel
D.the magnetic lines of force not coinciding with the lines of longitude

单项选择题Deviation changes with a change in（）.

A.latitude
B.heading
C.longitude
D.sea conditions

单项选择题Delivery to carriers（）the transit of the goods even though they are employed by the buyer，unless the intention of the parties is clearly to the contrary.

A.ends
B.completes
C.does not end
D.does not complete

单项选择题Delivery of the goods to the buyer’s agent for the purpose of forwarding（）an end to the transit if further destination has not been notified to the seller.

A.takes
B.makes
C.does
D.puts