問題詳情
14 令 R 為 x - y 平面上的一個封閉有界領域（closed bounded region），封閉曲線C 為 R 之邊界（boundary），且 R 永遠位於行經C 之路徑之左邊，則下列路徑積分中，何者不為 R 之面積？ 
參考答案
答案：A
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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