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家里撒了蟑螂药，但蟑螂依旧猖狂？最新研究发现，蟑螂对多种杀虫剂产生了交叉耐药性，而且这种耐药性在一代之内提高到之前的6倍。 Cockroaches are stepping up their defenses against the poisons designed to kill them. 蟑螂对杀虫剂的防御机制正在加强。 A new study has found that German cockroaches, the most common species of the insect in the world, are developing cross-resistance to numerous insecticides. 最新研究发现，全球最常见的蟑螂种类德国小蠊正对多种杀虫剂产生交叉耐药性。 cross-resistance：交互抗性 | 
