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单选题
The advantage of geostationary satellites is（）.
A
the range of antenna can cover everywhere in the world
B
we can know the ship’s exact position
C
that the distress alert can be located as soon as possible
D
antenna of permanent earth stations may be directed towards fixed points in the sky
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更多 “单选题The advantage of geostationary satellites is（）.A the range of antenna can cover everywhere in the worldB we can know the ship’s exact positionC that the distress alert can be located as soon as possibleD antenna of permanent earth stations may be directed towards fixed points in the sky” 相关考题
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Why do we use the weather satellites to take pictures of the atmosphere?Because______．A．the weather satellites can do it easilyB．clouds form. thereC．the weather forms thereD．the pictures can forecast the weather
考题
The main idea of this passage is that satellites aye now used in______．A．taking pictures of the atmosphereB．receiving pictures of the atmosphereC．doing other work in many waysD．weather forecasting
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What is defined as and area, excluding sea areas A1 and A2, within the coverage of an INMARSAT geostationary satellite in which continuous alerting is available?A.Ocean Area Regions AOR-E, AOR-W, POR or IORB.Sea Area A3C.Sea Area A4D.Coastal and Inland Waters
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The Moon and most artificial satellites travel around the Earth in elliptical paths．A: waves
B: orbits
C: voyages
D: flights
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Satellites were launched （） low orbit for weather and military applications.A、onB、aroundC、inD、with
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单选题（）is a space system using one or more artificial earth satellites.A
Satellite networkB
Satellite linkC
GMDSSD
Satellite system
考题
单选题CATEGORY A EPIRB’s transmit on frequencies that are monitored by（）.A
orbiting satellites in spaceB
commercial radio stationsC
private，commercial，and military aircraftD
ordinary radio stations
考题
单选题Geostationary satellite are artificial satellite which（）.A
always move slowlyB
are in one place onlyC
sometimes move and sometime don‟tD
synchronize with the movement of the earth
考题
单选题The receiver uses（）satellites to compute latitude，longitude，altitude，and velocity．A
oneB
twoC
threeD
four
考题
单选题The satellites over the major ocean regions cover the globe（）.A
besides the polar regionsB
including the North Pole and the South PoleC
above 70°N and below 70°SD
as for north and south as 70°
考题
单选题（）process the distress signal from EPIRB to determine its position and identity.A
COSPAS-SARSATB
Ground receiving stationsC
storing distress signalD
Near-polar orbiting satellites
考题
单选题What’s the advantage when using the satellites?（）A
The message can be directed to the desired locationB
The message can follow the earth’s curvatureC
The quality of message can not be affected by climaticD
The range of the message extend and the quality of reception is improved
考题
单选题Within the polar areas it is（）to see a satellite in geostationary orbit.A
impossibleB
possibleC
easyD
difficult
考题
单选题There are（）operational satellites in the INMARSAT system covering the whole globe except the polar regions.A
3B
4C
8D
12
考题
单选题（）process the distress signal from EPIRB to determine its position and identity.A
COSPAS-SARSATB
ground receiving stationsC
storing distress signalD
Near polar orbiting satellites
考题
单选题Geostationary satellites are the artificial satellites which（）.A
always move slowlyB
are in one place onlyC
sometime move sometime don‟t moveD
are synchronizing with the movement of the earth
考题
单选题Which statement about satellite navigation is TRUE? （）A
While a fix can be generated by signals received from two satellites，three satellites are necessary for reliable accuracyB
The satellites are in equatorial orbits around the earth about 60°of longitude apartC
The satellite navigation system determines a fix by measuring the doppler shift of the radio signals from the satelliteD
The ship's receiver cannot begin processing data until the antenna locks onto the satellite and starts continuous tracking
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