Feed the mice with different doses of liquor of paraquat and observe the toxic symptom.
给小鼠灌服不同浓度的百草枯溶液，观察小鼠的中毒症状；
Result: Lead exposure group, cadmium exposure group and combined exposure group all had toxic symptom.
结果：铅镉单独染毒组和联合染毒组出现明显的中毒症状；
The main symptom was fever, with less or no infection-toxic manifestations and respiratory symptoms.
主要症状为发热、感染中毒症状，呼吸道症状轻或缺如。
The main symptom was fever, with less or no infection-toxic manifestations and respiratory symptoms.
主要症状为发热、感染中毒症状，呼吸道症状轻或缺如。
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