单项选择题

The INMARSAT system is open for use by（）countries on a non-discriminatory basis.

A.some
B.lots of
C.many
D.all

相关考题

Within the polar areas it is（）to see a satellite in geo...

单项选择题Within the polar areas it is（）to see a satellite in geostationary orbit.

A.impossible
B.possible
C.easy
D.difficult

The position of INMARSAT AOR-W satellite is（）above the ...

单项选择题The position of INMARSAT AOR-W satellite is（）above the equator.

A.55.5 W
B.180E
C.15.5W
D.64.5E

The complying vessels can transmit ship-to-shore distre...

单项选择题The complying vessels can transmit ship-to-shore distress alerts by at least（）.

A.one means, whether satellite or terrestrial techniques
B.two means, whether satellite or terrestrial techniques
C.two separate and independent means, each using different radio communication services
D.two means, such as MF DSC and HF DSC

GMDSS

The INMARSAT system is open for use by（）countries on a non-discriminatory basis.