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【单选题】
下列有关氟摄入说法错误的是A.
人体氟的主要来源是饮水
B.
空气中的氟会引起氟中毒
C.
食物中摄取的氟量不是恒定的
D.
成人饮水量每日约2500～3000ml
E.
水中氟不易被吸收
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A.
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B.
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C.
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D.
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