问题标题：
请指教Therearehundredsofislands________thecoastFujian,thebiggestof________isnotfarfromthemainland.A.on,whichB.off,themC.off,whichD.on,themonthecoast、offthe
问题描述：
请指教
Therearehundredsofislands________thecoastFujian,thebiggestof________isnotfarfromthemainland.
A.on,whichB.off,themC.off,whichD.on,them
onthecoast、offthe
浦如平回答：
onthecoast在海岸线上（挨着海岸线）
offthecoast在海岸线周围（不挨着,但靠近）
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