One of the pilots in training - identified as Major C to preserve military secrecy - says having the drones in Afghanistan will be invaluable.

VOA: standard.2010.07.27

And the last one in the major pattern is a half step from B to C.

大调模式的最后,是一个从B到C的半音级

耶鲁公开课 - 聆听音乐课程节选

And the last one in the major pattern is a half step from B to C.

大调模式的最后,是一个从B到C的半音级

耶鲁公开课 - 聆听音乐课程节选