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世界上毒性最强的化学物品是什么?

potassium saltKCN151-50-816804氰化钙Calcium cyanideCalcyanideCa(CN)2592-01-815755氰化银钾银氰化钾Potassium silver cyanidePotassium cyanoargenateKAg(CN)2506-61-615886氰化镉Cadium cyanideCd(CN)2542-83-625707氰化汞氰化高汞
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