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Lesson 8 背景知识填空-8When the pattern is charted on the assigned procedure or route being flown, ATC may __ all holding instructions except the charted holding direction and the statement AS PUBLISHED; for example, HOLD EAST AS PUBLISHED. ATC must always issue _ holding instructions when pilots request them.

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Lesson 8 背景知识选择-1What are the ways for the crew to reduce the aircraft's weight in the air?

A. To circle to waste fuel
B. To discharge fuel via fuel-dumping systems
C. To offload the luggage
D. To vaporize the fuel

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Lesson 8 背景知识选择-2Which areas can be designated as the area for fuel-dumping?

A. areas over seas
B. areas over unpopulated
C. areas over residential areas
D. areas over sparsely-populated

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Lesson 8 背景知识选择-3What are the possible consequences of landing overweight?

A. structural damage
B. aircraft break-up
C. causing fire or sparks
D. loss of aircrfaft control

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Lesson 8 背景知识选择-4What are the possible reasons for holding?

A. flow control
B. traffic congestion
C. flight delays at the airport
D. waiting for weather improvement
E. performing the checklist to do the troubleshooting
F. wide-use of GNSS

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