單項選擇題The source of energy fitted in GMDSS complying vessels must be（）.

A.the main source of energy
B.emergency source of electrical power
C.the reserve source of energy
D.all of above


您可能感興趣的試卷

你可能感興趣的試題

1.單項選擇題The NCS of INMARSAT-A system in the IOR is in（）.

A.Goonhilly, UK
B.Yamaguchi, Japan
C.Perth, Australia
D.Southbury, USA

2.單項選擇題The position of the INMARSAT satellite over the Atlantic Ocean Region-W is（）.

A.180E above the equator
B.64.5 E over the IOR
C.15.5W along the straight line
D.55.5W above the equator

3.單項選擇題Mariners should pay much attention in the overlapped area owing to（）.

A.complicated circumstances
B.changeable atmospheric pressure
C.large density of traffic
D.some strong signals from unwanted satellites

4.單項選擇題The satellites over the major ocean regions cover the globe（）.

A.besides the polar regions
B.including the North Pole and the South Pole
C.above 70N and below 70S
D.as far north and south 70

5.單項選擇題The Inmarsat system has five major components, they are:（）.

A.Space segment, NCC, RCC, SES and CES
B.Space Segment, a satellite system, C system, NCC and NCS
C.Space Segment, NCC, NCS,CES and SES
D.A system, C system, satellite system, earth stations and NCS