2022期英语周报65期答案

20.(11分)(1)3NO(g) O3(g)=3NO2(g)△H=-317 kmOl(2分)(2)①2BaO 4NO2 O2=2Ba(NO3)2(2分)②ABC(3分,每答对一项得1分,错选得0分)(3)①3Cl2 8OH 2NO=2NO3 6CI 4H2O(2分)②次氯酸钠在酸性条件下氧化能力增强(2分)

写作Dear OliverKnowing that you are returning to your homeland, I am reluctant to saygoodbye to you.【高分句型一】(表达对Over的不舍之情)As for the gift, after careful consideration I recommend you the Chineseknot. Made of red threads, it always represents happiness, luck andunity, though in different shapes. It is a tradition for Chinese to hang it inhouses as a decoration,【高分句型二】 It is usually given as a precious gift toclose friends. I think it can convey your best wishes to your friend.(BF-种礼物并说明原因)Hope my advice can be of some help.(希里)Yours, Li Hua

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