[請問] 麥克雙牛堡+玉米濃湯=50元？
之前在麥當勞買了麥克雙牛堡，店員告知49元，
後來想想再買一個玉米濃湯好了，結果價錢變50元，
結果後來我各買了兩個，100元。
我想問的是，麥當勞的1+1也可以用麥克雙牛堡去套用嗎？
還是純粹是店員搞錯？
有圖有真相：http://0rz.tw/nO2Jy
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