41 The customs officers conducted _____ searches to uncover attempts to smuggle prohibited items
through the airport.
(A) restless
(B) reckless
(C) thorough
(D) notorious
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統計: A(22), B(28), C(57), D(12), E(0) #3255947
統計: A(22), B(28), C(57), D(12), E(0) #3255947