2022智慧上进名校学术联盟高考答案

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第一节W短文改错The first few days after gethome from collegegettingwere OK,but then I began to feelI ratherboringandboredlonely.Most of my friends was either away on holiday orwerehad holiday jobs.I tried to get a job myselfandwithoutbutsuccess.I was beginning to wish I had not come homewhile I saw an advertisement for holiday courses on thewheninlocal newspaper.For a small fee I could try lots ofdifferentactivity organized by the town's youth club.activitiesEach activity lasts half a day.I met some students fromlastedBulgaria who invited me a visit Bulgaria next year.Intoa fact,it was one of the best summer holidays I'veever had！

14.BCD【解析】记忆细胞、浆细胞和效应T细胞都需要抗原的刺激才能产生;细胞分化不会导致遗传物质改变;分析题图可知,de段属于二次免疫,bc段属于初次免疫,bc段的斜率小于de段的斜率;图乙中m>n的主要原因是注射疫苗后机体产生了较多的记忆细胞。故选BCD。