【单选题】There are ________ to coal and petroleum, but water cannot be replaced.
【单选题】There are ____ to coal and petroleum, but water cannot be replaced.
【单选题】Since about 1800, near the beginning of the industrial revolution, coal, petroleum and gas have been used at a rapidly increasing rate. The supply of these【B1】is limited and electric power is very【B2】...
【判断题】Because their properties differ greatly, petroleum asphalt should not be confused with coal tar. ( )
【单选题】Fossil fuel contains ① coal; ② Petroleum; ③ Natural gas; ④ Combustible ice.
【简答题】Biomass is the only new energy that can replace fuel on a large scale. (coal / petroleum)
【单选题】Since about 1800, near the beginning of the industrial revolution, coal, petroleum and gas have been used at a rapidly increasing rate. The supply of these【C1】______is limited and electric power is ve...
【单选题】十三届全国人大一次会议3月17日上午选举习近平为中华人民共和国主席、中华人民共和国中央军事委员会主席。当这一选举结果宣布时,全场爆发出长时间热烈的掌声。会议还同时选举( )为第十三届全国人民代表大会常务委员会委员长,选举王岐山为中华人民共和国副主席。习近平左手抚按宪法,右手举拳,庄严宣誓。“我宣誓:忠于中华人民共和国宪法,维护宪法权威,履行法定职责,忠于祖国、忠于人民,恪尽职守、廉洁奉公,接...
【单选题】某基础埋深5m,下列关于基底附加应力说法正确的是()