单选题Geostationary satellites are the artificial satellites which（）.Aalways move slowlyBare in one place onlyCsometime move sometime don‟t moveDare synchronizing with the movement of the earth
单选题
Geostationary satellites are the artificial satellites which（）.
A
always move slowly
B
are in one place only
C
sometime move sometime don‟t move
D
are synchronizing with the movement of the earth
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