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人教版初中《生物》和中师《生物学》动物部分“鲫鱼”一节的教学内容中均提到了“咽喉齿”这个概念,多数学生对其形态、功能不能很好地理解,而在相应的教材和教学参考书中缺乏有关的资料。为方便教学,本文对咽喉齿的功能特点以及几种常见鲤科鱼咽喉齿的特征作一简要描...
The teaching content of “Piraeus” in PEP “Junior” biology and the “Crucian carp” part of biology division of PEP refers to the concept of “throat teeth”. Most students do not fully understand their form and function. However, The corresponding textbooks and teaching reference books lack the relevant information. In order to facilitate teaching, this article on the functional characteristics of the throat and several common carp fish throat characteristics for a brief description ...