题目

阅读理解Sitting straight at his desk, Sami Sabeaallil turns on the lights, places his mobile phone on a selfie stick and starts greeting his viewers. Hi everyone, this is Sami,he says in Chinese. I will recommend you some toys tonight…Every day, Sami livestreams (网络直播) on Douyin (China's domestic version of TikTok) for one or two hours, promoting his toys to Chinese buyers. Based in Yiwu City, the world's largest trading center for daily consumer goods in East China's Zhejiang Province, the 22-year-old said he is likely the first foreigner to get into livestream selling in Yiwu a(2013?浙江模拟)在25℃、101kPa下,1g甲醇燃烧生成CO2和液态水时放热22.68kJ,下列热化学方程式正确的是(  )A.CH3OH(l)+32O2(g)?CO2(g)+2H2O(l)△H=+725.8kJ/molB.2CH3OH(l)+3O2(g)?2CO2(g)+4H2O(l)△H=-1452kJ/molC.2CH3OH(l)+3O2(g)?2CO2(g)+4H2O(l)△H=-725.8kJ/molD.2CH3OH(l)+3O2(g)?2CO2(g)+4H2O(l)△H=+1452kJ/mol
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