阿摩線上測驗
48 What was the primary role of the Coast Guard in Ruan's case?
(A) Conducting a counterintelligence operation and investigation
(B) Stopping unauthorised entry and ensuring national security
(C) Providing assistance to Taiwanese immigration authorities
(D) Surveying foreign ship movements near the coastal waters
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統計： A(12), B(41), C(27), D(12), E(0) #3462302
統計： A(12), B(41), C(27), D(12), E(0) #3462302
