题目

我市一家企业生产的“土豆农膜”是一种新型环保农膜，在塑料中添加土豆淀粉，可被细菌和微生物释放的酶分解，使塑料呈多孔状＋强度下降。下列有关说法错误的是A．塑料属于天然高分子材料B．淀粉属于高分子化合物 C．该新型农膜有助于解决农村“白色污染”问题D．土豆农膜容易降解 答案：A解析:略　　 The Indian Ocean tsunami at the end of 2004 is believed _____ more than 160,000 people and made millions homeless, _______ it perhaps the most destroying tsunami in history. 　　A. to kill; making      B. to have killed; making 　　C. having killed; to make D. killing; made