2023年新高考模拟冲刺卷(四)4数学试卷 答案(更新中)

2023年新高考模拟冲刺卷(四)4数学试卷 答案(更新中)，目前全国100所名校答案网已经汇总了2023年新高考模拟冲刺卷(四)4数学试卷 答案(更新中)的各科答案和试卷，更多全国100所名校答案请关注本网站。

11.A【解析】据题意可知，取样分离DNA后使其变性为单链，因此所得结果不能说明DNA分子的复制为半保留复制，A错误；由实验一30秒后取样的结果可知，检测带放射性标记的片段，即检测子链，发现一半是小片段，一半是大片段，据此可知一条子链的合成为连续的，另一条子链的合成是不连续的，进而可推测亲代DNA分子的两条链方向应该是相反的，若是相同的，则结果都应该是大片段或都应该是小片段，B、C正确；由实验一3分钟取样和实验二DNA连接酶缺失突变体的实验结果对比可知，DNA分子复制时，小片段需由DNA连接酶连接起来，D正确。故选A。

第二节A few years afier I got married.a wedding gift arrived in the mail from Carl.which was a book.just MartinEden."What a waste,"I said."It will never get read."But then,the more I thought about it.the more I realizedthat Carl was trying to tell me something."What do you have to losc?"my wife asked."Carl took the time to sendit to you;you might as well take some time and read it.Once you've read it,you can do anything you want."Acouple of days later I started to read the book.By the time I finished reading the book,which took me over twoycars,I recorded the definitions of hundreds of words in the margins.Now I understood why Carl wanted me to read the book.For the first timc in my life there was a ray of hopethat I did not have to remain ignorant for the rest of my life.Once the world of books opened up to me,it becamea road of cxcitement at the turn of cvery page.Only those who have been buried so deeply in ignorance,and havebeen able to see the light by reading books,can possibly understand the thrill of becoming enlightened.My lifewould never be the same again.More importantly,it was never too late.