18. What is the purpose of this passage?
(A) To encourage more people to join WildAid.
(B) To appeal to the public for shark conservation.
(C) To propagate the good deeds of Ecuadorian Navy.
(D) To point out places where shark poaching happens regularly.
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統計: A(0), B(3), C(0), D(0), E(0) #3102631
統計: A(0), B(3), C(0), D(0), E(0) #3102631