問題詳情
21 U.S. Customs officials acknowledge that no system is_________, and that most successful preventativemeasures involve an ounce of luck.
(A)foolproof
(B)intrinsic
(C)replaceable
(D)antiquated
參考答案
答案：A
難度：非常困難0
書單：沒有書單，新增
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21 U.S. Customs offi☆☆☆☆☆ ...