题海让大学四年没有难题
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单选题 听录音,选择正确选项<iframe src="/exam-ans/module/audioplay.html?objectid=9c3f46cd8b97f5c136553e8015316fc4"></irame>

A. ATC will speak clearance at the boundary

B. ATC will cancel clearance at the boundary

C. ATC will stop giving clearance at the boundary

D. None of above

无线电陆空通话课程封面

学科:无线电陆空通话

时间:2023-06-20 11:47:15

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