Saturday, March 16, 2024
Saturday, March 16, 2024
Thursday, October 19, 2023
Wednesday, October 18, 2023
Tuesday, April 23, 2024
问题:以根据生物对生境中水分状况的要求和适应,将植物分为水生植物,湿生植物、中生植物和旱生植物。下列植物中,哪一种是湿生植物()A、睡莲B、水稻C、玉米D、仙人掌
Sunday, November 19, 2023
问题:相互依赖的若干组分结合在一起,能完成特定功能,并朝特定目标发展的有机整体,即是()A、系统B、生物系统C、生态系统D、农业生态系统
Sunday, November 19, 2023
Thursday, October 13, 2022
Friday, February 2, 2024
问题:草原退化的一个标志是()A、多刺植物和有毒植物繁盛B、地上芽植物出现C、多年生植物出现D、土壤的中生化
Tuesday, April 23, 2024
Thursday, October 19, 2023
Tuesday, July 4, 2023
Tuesday, January 9, 2024
Saturday, November 25, 2023
Sunday, November 12, 2023
问题:草原退化的一个标志是()A、多刺植物和有毒植物繁盛B、地上芽植物出现C、多年生植物出现D、土壤的中生化
Sunday, November 19, 2023
Saturday, March 16, 2024
Wednesday, October 18, 2023
Tuesday, January 9, 2024