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【单选题】
以下关于卫星轨道，叙述不正确的是：A.
地球同步轨道是自转周期与地球相同的逆行轨道
B.
轨道的顺行和逆行是以卫星飞行的区别的
C.
轨道倾角在90度附近的轨道叫极轨道
D.
偏心率小于0.1的轨道可近似看作圆轨道
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A.
it tells stories of young guys living in Chicago
B.
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C.
it launches a 13-week ad campaign
D.
it advertises for certain products at the end of each play
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A.
The MRCC has already informed others about our situation
B.
The MRCC has already informed us about the situation
C.
The MRCC has already got the message about our situation
D.
The MRCC has already sent assistance to us
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A.
anemia
B.
CO poisoning
C.
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D.
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