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题型：单选题 题类：真题 难易度：普通
-- So he did. Because he did it .
Many people think sharks can never be {#blank#}1{#/blank#} because they are the{#blank#}2{#/blank#} in their {#blank#}3{#/blank#} {#blank#}4{#/blank#}.
— Fantastic! It's the __________ one I've ever seen.
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