足太阴脾经的其始穴是______,终止穴是______。
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在特定穴中,公孙穴是______,又是______。
三阴交穴是______与______,______经脉相交会的穴。
Normally the term _____ refers to incidents in which the pilot forgets to extend the landing gear, while ____ refers to incidents where a mechanical malfunction prevents the pilot from extending the landing gear.
A. gear-up landing, belly landing
B. belly landing, gear-up landing
C. forced landing, ditching
D. ditching, forced landing
A voice message system on some aircraft may give a clear _____ warning indication: “GEAR NOT DOWN”.
A. verbal
B. visual
C. valid
D. video