题目: Her classmates insisted that she the school trip to Guiyang. [ ]A. organized B. organize C. would organize D. had organized 答案: 答案:B
题型:读图填空题 下图是三种血管关系示意图,请你据图回答有关问题。(括号内写编号,横线上写名称)(1)写出图中标号所示血管名称:① ② ③ (2)血液在标号[ ]所示血管中流动最快,在标号[ ]所示血管中流动最慢。 (3)红细胞在标号[ ]所示血管中呈单行通过,该血管的管壁只由 层上皮细胞构成。(4)若标号②为肺泡外毛细血管,则标号①表示的血管是 ,其内流 血;标号③内血液将最先流向心脏的 。 查看答案