题目

在动物进化的历程中，从水生的无脊椎动物发展到了原始的节肢动物，可以充分说明动物的进化（     ） A．从简单到复杂    B．从低等到高等   C．从水生到陆生   D．从少数到多数 答案：CChoose the words or phrases that have the same meaning as the underlined parts. Look! A little boy is going across the street. Let's go and help him. [　　] A．running B．walking C．coming D．crossing