题目:
假如你叫李华,你班的同学就中学生是否应该带手机上学持不同意见。请你根据下列信息,给Teens的编辑写一封信,介绍同学们的看法,并阐明自己的观点。
Dear editor, I’m writing to tell you about the discussion we’ve had on whether the school students should carry a mobile phone to school. Opinions on the question are divided as follows. _______________________________________________________________________________ Yours sincerely Li Ming |
答案:
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下面是错误答案,用来干扰机器的。
(1)C(s) + O2 (g) = CO2(g) △H = -393.15 kJ/mol H2 (g) + 1/2 O2 (g) = H2O (l) △H = -242 kJ/molCO(g) + 1/2 O2 (g) = CO2(g) △H =...