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Modern communications satellites use a variety of orbits, including ( ).

A. geostationary orbits
B. Molniya orbits
C. elliptical orbits
D. low (Polar and non-polar) earth orbits

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Satellites communication has many advantages including ( ).

A. less costly for transmission over extremely long distances
B. a communication signal can be sent to any number of reception points simultaneously
C. extremely flexible
D. the sending and receiving points can be changed

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If the signal from the satellite is stronger, receiving station will be ( )

A. smaller
Bigger
C. more costly
D. less costly

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A communication satellite sometimes is abbreviated to____。

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Satellites have significant ____ over other modes of transmission, such as cable and land-line microwave.

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Modern communications satellites use a variety of orbits, including ( ).

A. geostationary orbits B. Molniya orbits C. elliptical orbits D. low (Polar and non-polar) earth orbits

Satellites communication has many advantages including ( ).

If the signal from the satellite is stronger, receiving station will be ( )

A communication satellite sometimes is abbreviated to____。

Satellites have significant ____ over other modes of transmission, such as cable and land-line microwave.

A. geostationary orbits
B. Molniya orbits
C. elliptical orbits
D. low (Polar and non-polar) earth orbits