阿摩線上測驗
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試卷名稱：105年 - 2016 iGeo_MMT國際地理奧林匹亞競賽#81823
年份：105年
科目：奧林匹亞資訊
The distance between points 1 and 2 is 3 km. The average yearly rate of the glacier retreat, in the time between when the images were taken, is approximately:
(A)140 m/year
(B)160 m/year
(C)180 m/year
(D)200 m/year