考试
2022-12-17 05:16:09

Why does the author mention th

题目描述

Whydoestheauthormentionthespecimenpreservedinthebirthcanal?_____

A

Toillustratethattheembryofossilsarequiteadvancedintheirdevelopment

B

Toexplainwhythefossilsarewellpreserved

C

Toindicatehowtheichthyosaursdied

D

Toprovethatichthyosaursaremarineanimals

答案解析

解析第三段中提到保存在产道中的标本,是为了说明胚胎发育的程度很高。   

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