题目

Answer the following questions by using the information taken from a dictionary page. (You may read the questions first.)  jaguar: n. a type of large, yellow-colored cat with black markings found in the southwestern region of the U. S. and in Central and South America. jargon: 1. n. speech that doesn’t make sense. 2. n. an unknown language that seems strange or impossible to understand. 3. n. a language made up of two or more other languages: His jargon was a mixture of French and English. 4. n. the special vocabulary of a field or profession: Her report on computers was filled with jargon.关于能源、能量及能量的转化，下列说法正确的是（　　）A．煤炭、天然气等常见能源是用之不尽的能源B．因为能量是守恒的，能量不可能消失，所以不需要节约能源C．发电机是将电能转化为其它形式能的装置D．核电站发电是在人工控制下的核能释放