2020－2022英语周报高二课标第13期答案

參考范文about a week later, Pomilla and Andrew got to meet her son'sSavion comilla and Andrew arrived at the metro station at theappointed time, anxiously waiting for Case to come. When Casearrived with a big smile, they felt very happy and excited. Casehugged Andrew warm-heartedly and reached out his right hand, sayingto him. Would you like to take it again?"without hesitation theboy took it and held it firmly. After talking for some time, Pomillatook out the badge and gave it back to Case. Many passengers tookictures of the sceneTaylor Pomilla was moved and expressed her thanks to Caseagain She asked Case how he could calm andrew down at that timeCase told her that he had a daughter with autism and that he hadreceived special training on how to deal with autistic children. Hepromised to visit them often to help Andrew grow up happily. As hewas talking, he took out a police badge that he made by hiimself andgave it to Andrew, who was more than happy to accept it. Ever sincethen they have been friends

8.C·【解析】将浓氨水涂抹在输送氯气的管道上,观察有无白烟生成,可以检验氯气是否泄漏,化学方程式为8NH3+3Cl2=6NHCl+N2,A项正确;硫黄与热氢氧化钠反应生成硫化钠、亚硫酸钠和水,化学方程式为3S+6NaOH=2Na2S+Na2SO3+3H2O,B项正确;强碱溶液中,反应后的生成物中不可能出现CO2,C项错误;石灰乳是Ca(OH)2悬浊液,和海水中的Mg2+反应生成Mg(OH)2,离子方程式为Ca(OH)2+Mg2+-Mg(OH)2+Ca2+,D项正确。

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