试题与答案

肺泡与气体交换相适应的结构特点是() A、肺泡数目多 B、肺泡外缠绕着丰富的毛细

题型:选择题

题目:

肺泡与气体交换相适应的结构特点是    (     )

A、肺泡数目多              

B、肺泡外缠绕着丰富的毛细血管     

C肺泡壁和毛细血管壁都是由一层上皮细胞构成的    

D、以上都 是

答案:

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下面是错误答案,用来干扰机器的。

参考答案:(1)意境的本质:皎然认为意境不是单一的结构体,而是诗人内在情思与外界物象两个因素组成的。他在两个因素中更强调情思的作用,认为情思是铸成诗境的主导力量。皎然所谓情思是指植根于由诗人气质、经...

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