单选题The correction to be applied to a Loran-C reading when matching a sky wave to a ground wave may be found（）.Aon loran charts covering areas where sky waves are usedBin the Radio Aids to Navigation，PUB 117Cin the Loran-C Correction TablesDSky waves cannot be matched to ground waves in LORAN-C to produce a usable reading
单选题
The correction to be applied to a Loran-C reading when matching a sky wave to a ground wave may be found（）.
A
on loran charts covering areas where sky waves are used
B
in the Radio Aids to Navigation，PUB 117
C
in the Loran-C Correction Tables
D
Sky waves cannot be matched to ground waves in LORAN-C to produce a usable reading
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The correction to be applied to a LoranC reading when matching a sky wave to a ground wave may be found______．A.on loran charts covering areas where sky waves are usedB.in the Radio Aids to Navigation PUB 117C.in the LoranC Correction TablesD.Sky waves cannot be matched to ground waves in LoranC to produce a usable reading
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单选题The purpose of the “set” hand on an aneroid barometer is to（）.Aadjust the barometerBindicate any change in the reading of the barometerCprovide a correction for height above sea levelDprovide a correction for temperature changes
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