2022-2022英语周报高二外研14期答案

Our school had a school choir competition June 20. As Panning, the competition tookonplannedplace in the main hall. I was very nervousafter we began to perform. Hid!"IStartto have thebeforestartedhiccups(t] WM). Lisa advised me to hold my breath and countedto ten, while Amy brought somecountwarm water and asked me to drinkthemwaItMy friends tried to help me in manybut nothingwaysworked."BOO! " Tony frightened me from behind my back. I was Suchsurprised that my hiccupsstopped, At last, we sang inbeautifully harmony on the stage.beautiful

oO8.C【解析】Y和含有相同的官能团,分子组成相差2个CH2原子团,互为同系物,A项正确;X和Y生成Z的反应为取代反应,B项正确;X苯环上氢原子的位置如图,其三氧取代OH物分别为①②、①③、①④、②③、②④、③④,共有6种,C项错误;X、Z、W均含羧基,都能与 NaHCO3溶液反应产生CO2,D项正确。

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