問題詳情
67.附圖中有三種產生annihilation的方法，請問那些可以當作true annihilation？(一律給分) 
(A)甲
(B)乙
(C)丙
(D)甲，乙
(A)甲
(B)乙
(C)丙
(D)甲，乙
參考答案
答案：A,B,C,D
難度：困難0.333333
統計：A(17),B(17),C(19),D(16),E(1)
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