Monday, November 25, 2024
Friday, May 9, 2025
问题:由于种间存在(),从而保证了物种在遗传上的稳定性。...
Tuesday, July 16, 2024
Sunday, April 6, 2025
问题:花卉的生长发育阶段分为:种子休眠与萌发、营养生长、()三个阶段。...
Friday, May 9, 2025
Saturday, May 6, 2023
问题:温室的加温方式有:暖气式(蒸汽、水)、鼓风系统、()...
Friday, May 9, 2025
问题:按土壤因子分类:喜酸性土树种、耐碱性土树种、耐瘠薄土树种、()...
Monday, November 25, 2024
Sunday, April 6, 2025
Tuesday, July 16, 2024
Thursday, May 8, 2025
问题:可以用胚培养进行繁殖的花卉有:凤仙花、罂粟、矮牵牛、()...
Thursday, January 30, 2025
问题:华南地区对有毒气体抗性较强的树种有:木麻黄、银桦、石栗、榕、()、()...
Sunday, April 6, 2025
Friday, August 30, 2024
问题:花卉的茎插又分为:芽叶插、软材料扦插、半软材料扦插、()...
Friday, May 9, 2025
问题:DNA的碱基顺序决定()的序列的过程即蛋白质的合成过程,实际上包括密码的转录和翻译两个过程步骤。...
Thursday, May 8, 2025
问题:生长期间不需要做摘心处理的花卉有:凤仙花、鸡冠花、三色堇、翠菊、麦杆菊、()...
Sunday, April 6, 2025
问题:宽叶草坪有:结缕草、地毯草、假俭草。细叶草坪有:天鹅绒草、马尼拉草、()...
Friday, May 9, 2025
Saturday, May 6, 2023
Sunday, April 6, 2025