【单选题】
ATC clearance does not contain______.___
A. clearance limit
B. altitude data
C. route of flight
D. flight direction
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答案
D
解析
暂无解析
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【单选题】
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【单选题】
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【单选题】
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【单选题】
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【单选题】
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【单选题】
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【单选题】
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【单选题】
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【单选题】
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【单选题】
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