提供过渡高度层和过渡高度。（）<br>A:Transition layer and transition altitude are provided.<br>B:Transition layer and transition height are provided.<br>C:Transition level and transition height are provided.<br>D:Transition level and transition altitude are provided.

提供过渡高度层和过渡高度。（）
A:Transition layer and transition altitude are provided.
B:Transition layer and transition height are provided.
C:Transition level and transition height are provided.
D:Transition level and transition altitude are provided.

出自：航空情报执照

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