1954年，德国的克拉普特以形成旅游消费的动力和以旅游消费的过程为中心为题，写出了()一书。
A. 《旅游消费》
B. 《旅游及旅游收入的经济理论》
C. 《旅游活动》
D. 《旅游业概论》
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Listen tothetransmission or short exchangeand choose the correct answer.
A. Join right hand downwind at 3000ft
B. Join right hand downwind at 2500ft
C. Join left hand downwind at 3000ft
D. Join left hand downwind at 2500ft
Listen tothetransmission or shortexchangeand choose the correct answer.
A. For spacing
B. For separation
C. Due sequence
Due traffic
Listen tothetransmission or shortexchangeand choose the correct answer.
A. Traffic in sight
B. DC-10 on short final
C. Number two in traffic
D. Traffic on the runway
Listen tothetransmission or shortexchangeand choose the correct answer.
A. Make long approach
B. Follow Airbus on 45km final
C. Land before the Airbus on final
D. Make short approach
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