阿摩線上測驗
26. Human trafficking is a ______ industry. It is second only to drug trafficking as the most profitable illegal industry in the world.
(A) lucrative
(B) mediocre
(C) pertinent
(D) transient
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統計： A(7), B(2), C(2), D(4), E(0) #3374969
統計： A(7), B(2), C(2), D(4), E(0) #3374969
