从句子意思上来看,我们需要关注的就是 whenever individuals of one genetic composition are better at reproducing than that of others.这个部分, those指代的是individuals,of another是和of one 对应的,因此选D
natural selection operates whenever individuals of one genetic composition are better at reproducing than that of others怎么会有两个谓语?到底是natural selection operates whenever individuals of one genetic composition还是natural selection are better at reproducing?我理解的是后者。若是这样的话,再若是those指代individuals的话,那么individuals怎么能与reproducing比较?请各位NN解答下。PS:若是前者的话后面的are better at...不就是没用的么?因为前面已经构成了一个完整的句子。