题目

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。 Drawn in simple black and white, Tuzki (兔斯基) doesn't seem special at first sight. But with two narrow eyes and slim arms, the rabbit creates his own special magic. He is very good at using body language (express) different emotions. His (present) on instant messaging platforms like QQ and WeChat had made him into true icon (偶像) of the interesting generation. It is an achievement neither the rabbit its creator Wang Maomao would have imagined. As early as 2006, Tuzki lived on 生物氧化塘法治理环境污染利用的主要生物是（   ） A．藻类和浮游动物 B．细菌和浮游动物 C．藻类和细菌 D．浮游动物和鱼类