问题:大量有机物排入水体后,引起死鱼的主要原因是()A、富营养化B、毒性C、悬浮物增加D、溶解氧下降...
Thursday, February 15, 2024
Sunday, April 21, 2024
Thursday, March 21, 2024
Thursday, September 15, 2022
Sunday, February 25, 2024
Sunday, November 26, 2023
问题:光化学烟雾是氮氧化合物和碳氧化合物在阳光照射下形成的。...
Thursday, March 21, 2024
Thursday, November 2, 2023
Thursday, March 21, 2024
Thursday, September 21, 2023
问题:西维因的羟基代谢物与植物体内的葡萄糖醛酸结合后毒性降低,此现象称为()A、生物活化B、生物降解C、初级解毒D、次级解毒...
Monday, December 25, 2023
Thursday, October 26, 2023
Sunday, March 3, 2024
Sunday, November 26, 2023
Thursday, February 15, 2024
Sunday, February 25, 2024
Wednesday, February 8, 2023
Monday, December 25, 2023
问题:环境问题按照成因可分为两类,一类是由()引起的,称为原生环境问题;另一类是由()因素引起的,称为人为环境问题。环境保护所要考虑的主要是()环境问题。...
Sunday, March 3, 2024
Sunday, February 25, 2024