2023全国100所名校最新模拟示范卷答案

2023全国100所名校最新模拟示范卷答案，全国100所名校答案网已经编辑汇总了2023全国100所名校最新模拟示范卷答案的各科答案和试卷，更多全国100所名校答案请关注本网站。

全国100所名校理综卷答案五

量站显城少，D南。15D瓦解析】分析题意可知，野生型细菌体内含有⑦一⑤这五种酶，所以只要在培养基中添加甲就能合成生长需要的乙，丙、丁，戊这四种物质：而突变型细菌必须在培养基中添如甲、乙、丁才能生长，说明铁乏合成相应物质所必需的醇。突变型细菌必须在培养基中添加甲、乙、了才能生长，说明皖乏合成乙、丁所必需的酶，即酶①③，A错误：酶与底物结合后会改变酶的形状，反应完成后，露分子又恢复原状，B错误：酶具有专一性，酶②能催化乙转变为丙，酶③能催化丙转变为丁，C错误；若丙→戊的反应受阻，乙可以合成戊，所以突变型细菌也能生长，D正确。

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【参考范文】Spend Time with GrandparentsThere are many things we can do to care for our grandparents.Basically,call them once a week just to askthem how they are.Moreover,visit them frequently and spend some time with them.Listen to them describe theirold days and tell them about our school life.If possible,hang out with them to enjoy nature.Grandparents alwayshave a lot to share with us.By communicating with them,not only can we know more about them and betterunderstand them,but we can learn many valuable life lessons from them.