单项选择题

All of the following information concerning lighted aids to navigation may be read directly from the Light List EXCEPT the（）.

A.location
B.height of light above water
C.luminous range
D.light characteristics

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All of the following are part of the fire triangle EXCEPT（）.

A.fuel
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C.oxygen
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单项选择题

All Loran-C transmitting stations are equipped with cesium frequency standards which permit （）.

A.every station in one chain to transmit at the same time
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Air circulation is caused or affected by（）.

A.the rotation of the earth on its axis
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C.mountain ranges
D.All of the above