英语周报答案网2021-2022高一

第一节短文改错(共10小题,每小题1分,满分10分)Michael. who now studied in our school. is my good friend. On the morning of laststudiesSaturday he asked me A spend the weekend together with himself. It was such fine weatherhimthat we had decided to hang around in the town. There were lots of pcople walk hereand there. Michael looked interesting in everything he saw. Three hours went by before weinterestedboth felt hungrily. but all the restaurant were full of guests. To our excitement. we werehrestaurantsabout to give up while two guests rose and left. We immediately sat down for our lunchhenand about an hour later we took the taxi home

6C【解析】新型冠状病毒外包膜主要来源于宿主细胞膜,因此其成分与宿主细胞膜相同.其基本支架为磷脂双分子层;新型冠状病毒没有细胞结构,不含核糖体,据此可推测,新型冠状病毒糖蛋白S的合成需利用宿主细胞的核糖体;新型冠状病毒进入细胞的过程依赖于生物膜的流动性;新型冠状病毒的糖蛋白S因为含有蛋白质成分,所以能够与双缩脉试剂发生紫色反应。故选C

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