题目

下列说法或表示方法正确的是（    ） A．等物质的量的硫蒸气和硫粉分别完全燃烧，后者放出热量多 B．由C(石墨)→C(金刚石)  ΔH=＋11.9kJ·mol-1  可知，金刚石比石墨稳定 C．在25℃，101kPa时，2g氢气完全燃烧生成液态水，放出285.8kJ热量，则氢气燃烧的热化学方程式可表示为：2H2(g)＋O2(g)=2H2O(l)  ΔH=－571.6kJ·mol-1 D．H＋(aq)＋OH－(aq)= H2O(l)  ΔH=－57.3kJ·mol-1，若将含0.5molH2SO4的浓硫酸与含1molNaOH的氢氧化钠溶液混合，放出的热量等于57.3kJ Have you seen the videos on TV? Do you wear large T-shirts and baggy jeans? Or have you heard some one rap(说唱)? Hip-Hop is very hot now． Hip-Hop music was started in the middle of the 1970s by African Americans in New York．The music break-dancing(霹雳舞)and graffiti(涂鸦)make up Western Hip-Hop culture．Most of the Hip-Hop songs are about love，jobs or even games． Usually in rap，singers speak words very quickly to a certain beat．Most of the words are fun．Singers play off words to make fun of themselves or others．Hip-Hop music has few rules．Singers just do what they think and rap it out in a clever or creative way．The freedom makes a lot of teenagers fall in love with the music．Many of them like wearing large T-shirts and baggy jeans．Famous rap and Hip-Hop stars include Eminem in the U．S．and Jay Chou from China． Today Hip-Hop is more and more popular across most of the world． 1．African Americans started Hip-Hop music in the middle of the l970s in New York． 2．There are three main kinds of music in Western Hip-Hop culture． 3．Hip-Hop music is very popular，but it has a lot of rules to follow． 4．From the passage we know Jay Chou is a famous rap and Hip-Hop star． 5．Many teenagers don’t like wearing large T-shirts or baggy jeans．