單項選擇題A vessel continually lists to one side and has a normal rolling period. Which statement is TRUE?（）.

A.The vessel has negative GM
B.The center of gravity is on the centerline
C.The list can be corrected by reducing KM
D.The vessel has asymmetrical weight distribution


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1.單項選擇題A vessel constrained by her draught may，in addition to the lights prescribed for power-driven vessels in Rule 23，exhibit where they can best be seen（）or a cylinder.

A.two all-round red lights in a vertical line
B.three all-round red lights in a vertical line
C.two all-round yellow lights in a vertical line
D.three all-round green lights in a vertical line

2.單項選擇題A vessel conducting mine clearing operations will show（）.

A.three balls in a vertical line
B.two balls in a vertical line
C.one ball near the foremast and one ball at each fore yard
D.one diamond near the foremast head and one ball at each fore yard

3.單項選擇題A vessel being towed will show（）.

A.a forward masthead light
B.sidelights and a sternlight
C.a towing light
D.All of the above

4.單項選擇題A vessel being towed astern shall show at night（）.

A.the lights required for a power-driven vessel underway
B.only the required masthead lights
C.a sternlight only
D.sidelights and a sternlight

5.單項選擇題A vessel being pushed ahead is required to carry which of the following lights?（）.

A.Sidelights and a stern light
B.Sidelights only
C.Sidelights and a small white light at each end
D.A small white light at each end