【判断题】燃烧前脱硫的主要方式是:洗煤、煤的气化和液化以及炉前喷钙工艺。
【单选题】The author brings in the pairs of ' Coke and Pepsi, Target and Wal-Mart, Engadget and Gizmodo'(Para. 4)to make______.
【判断题】If Coke and Pepsi are substitutes, an increase in the price of Coke will cause an increase in the equilibrium price and quantity in the market for Pepsi.
【简答题】我国使用的燃料主要是煤炭和石油。含有硫的煤炭燃烧时排放出污染空气的有毒气体主要是SO 2 。它遇到雨水成为酸雨降落到地面会带来很大危害。回答下列问题: (1)请举出三方面的危害实例: ①_______________________; ②_______________________; ③________________________。 (2)当SO 2 污染较严重时,目前有一种较有效的减轻方法...
【多选题】What would you like to drink? We have orange juice, seven-up, Coke and Pepsi.
A.
Coke would be nice. Thank you.
【单选题】国内电子商务网站中,最早引入网络会员制营销(网站联盟)的网站是
【简答题】(3)Coke and Pepsi are the most popular b of cola.
【简答题】我国使用的燃料主要是煤炭和石油.含有硫的煤炭燃烧时排放出污染空气的有毒气体主要是SO 2 ,它遇到雨水成为酸雨降落到地面会带来很大危害,请回答下列问题: (1)请举出三个方面的危害实例: ①______,②______,③______; (2)许多植物有抗御污染空气的有毒气体的能力,在常见植物中对这些气体有较强的吸附能力的是______(填写植物名称); (3)当SO 2 污染严重时,目前有一种有...
【单选题】煤炭燃烧时会排放二氧化硫等污染物 , 为了减少污染物的排放 , 许多地方都使用了洁净煤 ( 如脱硫 ) 技术。读煤炭脱硫效率图 , 完成第8 ~9 题。 关于煤炭资源的叙述,正确的是
A.
人均煤炭资源不断减少,主要是因为人类的不合理利用
【单选题】Forget football. At many high schools, the fiercest competition is between Coke and Pepsi over exclusive 'pouring rights' to sell on campus. But last week Jeffrey Dunn, president of Coca-Cola Americas...
A.
the fiercest competition at high schools
B.
thought to have ill impact on students
C.
competing with commercials on campus
D.
brought into disrepute by Coke and Pepsi