Mo Kan - cheng was flustered, and his miserable expression was almost laughable.莫干丞慌慌张张回答, 他那脸上的神气非常可笑.He has denied suggestions that he hates all English people, claiming the allegations are 'laughable'.他矢口否认那...
Variation among humans is limited to the possible permutations of our genes.人类的变异受限于我们的基因可能存在哪些排列。The possible permutations of x, y and z are xyz, xzy, yxz, yzx, zxy and zyx.x、y和z的可能的组合方式为xyz、xzy、yxz、yzx、zxy和zyx。These pe...