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。()
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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.
Chinese is thought to be the first language by most linguists.
静态就是静止不动的状态,动态就是某个时间段的变化过程。