Her ________ smile suggested that she was very _______ with the answer-

A．satisfying；satisfied

B．satisfied；satisfying

C．satisfied ： satisfied

D．satisfying；satisfying

将文字转化成图表来学习，能使知识要点一目了然，形象、直观，有助于揭示事物的内在联系．下面是生态系统的物质循环图：

亲爱的同学，你能从图中找出什么信息呢？试一试吧．（至少写出两条信息．）

（1）______；

（2）______．