英语周报2022初一答案

书面表达One possible versionI求Dear PeterI heve good news for you Our school Food Club will hold a dumpling- making activity. As you're interestedin Chinese food, I'm writing to invite you to join in the activity with me.As a kind of traditional Chinese food, dumplings are very popular during festivals, especially in the SpringFestival, when people will get together to make dumplings. The activity will begin at g am next Saturday in theschool canteen. First, (chefs) will teach us how to make dumplings step by step. Then, there will be a dumplingmaking competition in groups. Finally comes the most exciting part--enyoying our dumplings.Looking forward to your coming.Your

12.B【解析】由图可知,a为正极,b为负极,则外电路中,a、b两点电势:a>b,A项正确;在介质中由H的定向移动形成电流,故阴极的电极反应式为N2+6e-+6H一2NH3,阳极的电极反应式为2H2O4e-↑+4H,B项错误,D项正确;根据阴极的电极反应式可知,1mol氮气完全反应时,转移6mol电子,C项正确

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