单选题In using Loran-C,skywave reception gives greater range but is().Aonly accurate during daylight hoursBmuch less accurateConly accurate at twilightDmore accurate than using ground waves

单选题
In using Loran-C,skywave reception gives greater range but is().
A

only accurate during daylight hours

B

much less accurate

C

only accurate at twilight

D

more accurate than using ground waves


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