【多选题】【消耗次数：1】
影响水产品安全性的因素有哪些（）
①
A、寄生虫
②
B、重金属
③
C、农兽药残留
④
D、天然的毒素
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由昆虫通过受污染的土壤传播给人类的寄生虫感染。
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由寄生虫通过受污染的土壤传播给人类的寄生虫感染。
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通过饮用已被粪便污染的水而传播至人体的寄生虫病。
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