39. What would be the most effective method of reducing the incidence of blood flukes in a human population?
(A) Reduce the mosquito population.
(B) Reduce the freshwater snail population.
(C) Purify all drinking water.
(D) Avoid contact with rodent droppings.
(E) Carefully wash all raw fruits and vegetables.
詳解 (共 4 筆)
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請問(C)為甚麼不行?是因為全部這個詞範...
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血吸蟲病預防手段包括乾淨水源的普及化以及...
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這個問題是關於血吸蟲病 (Schist...
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減少血吸蟲的中間宿主----snail ...
私人筆記 (共 1 筆)
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血吸蟲的中間宿主均為螺類。就像登革熱防治...
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