【简答题】如图为菜豆种子结构图,请据图回答: (1)写出图示各结构名称: ①______②______③______④______⑤______. (2)菜豆种子储藏营养物质的结构是[______]______. (3)图中①②③④构成了______.保护种子内部结构的是[______]______.
【单选题】Jane takes delight ______ reading novels and watching TV when she stays at home.
【单选题】Marry _____ as a secretary in this company for twenty years and now she stays at home taking care of her own garden.
【简答题】欲在图表中显示图例,可在“设置图例格式”对话框的“________”选项卡中设置。
【简答题】根据菜豆种子结构示意图,请回答下列问题: (1)菜豆种子的结构是由______和______两部分组成的. (2)在菜豆种子中储存营养物质的结构是[5]______. (3)种子萌发时最先突破种皮的结构是[2]______. (4)菜豆种子的外面有果皮包被,因此在分类上属于______植物.(填“裸子”或“被子”)
【简答题】据下图所示,回答。 (1)菜豆种子的主要部分是[ ]_______________________。 (2)菜豆种子萌发时,贮藏在[ ]__________________________内的营养物质逐步分解,转化为可以被细胞吸收利用的物质,供其利用。 (3)在菜豆种子萌发过程中,[ ]_____________首先突破种皮并发育成[ ]_________,随后[...
【简答题】A.Her roommate stays awake all night. B.She needs a quieter place. C.She wants to save money to buy a piano. D.The present apartment is too expensive.
【单选题】Mary ________ as a secretary in this company for twenty years and now she stays at home taking care of her own garden.
【简答题】如图为菜豆幼苗和菜豆种子的部分结构示意图,请据图分析下列问题: (1)在菜豆种子萌发时,最先突破种皮发育成[8]的是[______]______. (2)菜豆种子的[______]______发育成[7],它在发育过程中所需的营养主要来自[______]______. (3)在菜豆种子中,[______]______是新生植物体的幼体,它是菜豆花在完成传粉、受精后,由______发育而成的. (4...