题目

下列变化不符合科学原理的是(    ) A.稻草变酒精             B.废塑料变汽油             C.空气变肥料           D.水变油 答案：D  解析：稻草主要成分是纤维素，水解后可生成葡萄糖，葡萄糖分解可生成乙醇；聚乙烯等废塑料分解可生成液态烃；空气中的氮气可用来合成氨。American people are wondering whether the newly-elected president and his administration will keep the nation safe and defend it _______ any terrorist attack in the future.      A．to              B．on           C．against       D．with