组合体的尺寸一般分为定形尺寸、定位尺寸和总体尺寸三类。
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我国海洋渔业中占重要地位的带鱼,大黄鱼,小黄鱼都是鲈形目鱼类。
由一条肽链构成的蛋白质,只有在三级结构基础上才能表现出生物活性。()
One of the basic differences between animal call systems and human language is that animal call systems are genetically transmitted, while language is culturally transmitted.
In Bluest Eyes, the white aesthetics is disseminated through mass media and numerous products in the United States.