Sunday, September 11, 2022
问题:一朵完整的花可分为()、()、()、()、()和()六部分。...
Friday, January 5, 2024
问题:孢子植物是由();();地衣植物;苔藓植物;蕨类植物等部分组成。...
Sunday, September 11, 2022
Saturday, February 18, 2023
Thursday, March 2, 2023
问题:蓼科植物何首乌的干燥块根药用,为《药典》记载的中药材“首乌”。它...
Wednesday, September 14, 2022
Wednesday, September 14, 2022
问题:次生构造中发达的栓内层称为()A、次生皮层B、初生皮层C、后生皮层D、绿皮层E、落皮层...
Saturday, November 11, 2023
Wednesday, October 25, 2023
Sunday, September 11, 2022
问题:菊科分为几个亚科?各亚科的主要特征有哪些?并例举药用植物6种以上...
Wednesday, September 14, 2022
问题:()科的植物罗布麻,干燥叶入药,常用于()方面的治疗。...
Wednesday, September 14, 2022
Tuesday, October 31, 2023
问题:厚壁组织增厚的部分,一般在角隅处加厚,也有的在切向壁或靠近胞间隙...
Thursday, September 15, 2022
问题:试述常见的草酸钙晶体有哪些类型。怎样区别草酸钙晶体与碳酸钙晶体?...
Wednesday, September 14, 2022
Wednesday, September 14, 2022
Wednesday, October 19, 2022
Saturday, August 26, 2023
Wednesday, September 14, 2022
问题:子房全部与凹下的花托愈合,花的其他部分着生于子房的上方称()。...
Wednesday, September 14, 2022