如下圖,有一支吸管原本在 140 度的位置,如果先將它逆時針旋轉 70 度,再順時針旋轉 30 度,最後會停在圖中 A、b、c、d 的哪個位置 Template




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tomski如下圖,有一支吸管原本在 140 度的位置,如果先將它逆時針旋轉 coloring