872 We are being ________ towards the national ______ by two military aircraft. [音频]
举一反三
- 872 Two commercial aircraft are escorting us towards the national boundary. [音频]
- is an aircraft that has not yet been fully proven in flight. Often, this implies that new aerospace technologies are being tested on the aircraft.
- A VORTAC is a facility consisting of two components, VOR/DME and TACAN. VOR signals can be used by ______ receivers and TACAN for ______ aircraft. A: civilian, civilian B: military, military C: civilian, military D: military, civilian
- 900 句单选 -15 字以上 -760 [音频] [音频] A: To avoid collision B: To give way to another aircraft C: To do the troubleshooting D: To wait for maintenance crew
- T or F 703 The aircraft flew to the alternate airport due to adverse weather at the destination airport. [音频]