题目

生殖细胞内DNA的改变可能会出现在子代生物体的所有细胞中，与这一结果无关的生理过程是（   ） A . 减数分裂 B . 受精作用 C . 有丝分裂 D . 细胞分化 答案：D1.Tom can skate even _____(good) than me.2.Some people think it is _____(polite) to ask someone's age.3.I regret to tell you that you didn't pass the exam because of your _____(care)．4.We watched until the train _____(appear) from our view.5._____ (luck)，John got back the notebook that he had lost at the cafe.