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單項選擇題

A.observer's meridian
B.Greenwich meridian
C.body's meridian
D.zenith distance

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A.blue rotating light
B.intermittent flashing amber/yellow light
C.flashing white light
D.flashing sidelight

A.located in an air-conditioned area
B.mounted in the passenger compartment
C.protected by a collision bulkhead
D.permanently mounted