题目

National Geographic Society 17 TH and M Streets N.W., Washington D.C．20036 U.S.A. The year is 1991．But just for a moment you will feel the centuries roll back. Close your eyes and you can almost see Charlemagne kneeling to receive his crown as Holy Roman Emperor. Or an ageing Michelangelo standing in the middle of rubble （碎石）, staring at the still unbuilt, sky-size dome （圆顶大厦）above. You are in St. Peter’s Basilica, heart of one of the most attractive nations in the world … Dear friend, Every now and then, you visit a place that leaves a lasting impression – and m关于能源的描述，下列说法正确的是                            （   B    ）