2021-2022 英语周报 高考 综合（OT） 23答案

第四部分写作第一节短文改错I was exciting to start a new adventure abroadexcitedTherefore, the excitement started to fade after a couple AHoweverweeks. Homesickness began to be set in. But all thatchanged after I met some new intends or spent some gooantime with them. We practice languages, ate together andpracticedvisited new places. I suppose we should never forget howimportant that is to have nice friends in our life. They canmake such the difference. To travel and visit other places Isaone of the better things you can do in your life. My advicebestfrom my experience are to travel and try new thingswhenever you get the opportunity.

21.(1)几丁质(2)菌株对几丁质的降解能力(3)等量的蒸馏水d几丁质酶几丁质降解为N—乙酰氨基葡萄糖从而破坏病原真菌的细胞结构

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