腾·云联盟2022-2023学年度上学期高三年级十月联考语文试题答案

腾·云联盟2022-2023学年度上学期高三年级十月联考语文试题答案，目前我们已经整理了腾·云联盟2022-2023学年度上学期高三年级十月联考语文试题答案的各科答案和试卷，更多试卷答案请关注本答案网。

【答案】C【解析】核DNA含量为2C的细胞可对应精原细胞和次级精母细胞，1C的细胞对应精子。核DNA含量为4C的细胞对应初级精母细胞，据图分析，与正常小鼠相比，敲除小鼠初级精母细胞数量增加。与正常小鼠相比，敲除小鼠的核DNA含量为1C的细胞（精细胞）数量显著下降，核DNA含量为2C的细胞（次级精母细胞）数量明显增多，说明敲除小鼠的精子形成过程被阻滞在2C→C过程，即阻滞在减数分裂Ⅱ期。核DNA含量由2C到4C的变化过程是核DNA的复制，可发生基因突变，基因重组发生在减数分裂I过程中。

第三部分写作（满分25分）】假定你是李华，你的新西兰朋友Trry将去中国朋友家做客，发邮件向你询问有关礼仪。请你回复邮件。内容包括：1.到达时间；2.合适的礼物；3.餐桌礼仪。注意：1.词数100左右；2.可以适当增加细节，以使行文连贯。Dear Terry,How are you doing?Learning that you are about to pay a visit to your Chinese friend and confused about theChinese manners,I am writing to tell you of some relevant details.Firstly,I would like to suggest that you arrive 5 to 10 minutes earlier,which is common in Chinesetraditional culture.Secondly,if I were you,I would bring some gifts with me,such as souvenirs from my owncountry.Besides,table manners are also what you should pay attention to.For example,you are not supposed tostick your chopsticks into your food.Instead,laying them on your dish is a smart choice.Hopefully,these suggestions will be helpful for you.Best wishes!Yours,Li Hua