Friday, October 7, 2022
Wednesday, November 15, 2023
问题:海带孢子体分三部分,内部为无色的,表面常见到暗褐色的是();细胞中的叶绿素为()和()光合产物为()和()
Friday, September 16, 2022
Tuesday, July 18, 2023
Monday, August 14, 2023
问题:藻类的生长方式:紫菜为散生长;海带是()生长;江蓠为顶端生长。
Monday, April 29, 2024
问题:紫菜壳孢子放散有何规律?如何促进或者抑制壳孢子的放散?
Friday, September 16, 2022
Friday, April 14, 2023
问题:海带幼苗分苗时最低标准长度为()A、5cmB、10cmC、15cmD、20cm
Sunday, September 11, 2022
问题:要保证海带幼苗下海后不发生或少发生病烂,一定要注意自然水温必须下降到()以下,并且稳定不再上升时方可出库。
Friday, September 16, 2022
Friday, September 16, 2022
Thursday, March 14, 2024
Monday, September 12, 2022
Tuesday, October 3, 2023
Thursday, March 14, 2024
Sunday, September 11, 2022
Tuesday, June 27, 2023
问题:杂交育种是指()、()个体间进行杂交,并在其杂种后代中通过选择而育成纯合品种的方法。
Friday, September 16, 2022
Monday, April 29, 2024
Sunday, September 11, 2022