衡水金卷先享题2022全国统一考试模拟试题答案

衡水金卷先享题2022全国统一考试模拟试题答案 ，目前我们已经整理了衡水金卷先享题2022全国统一考试模拟试题答案 的各科答案和试卷，更多试卷答案请关注本答案网。

38.A【解析】酶的专一性指一种酶只能催化一种或类化学反应,细胞代谢能够有条不紊地进行与酶的专性有关,A项正确;酶长期保存需要低温储存,B项“错误;对于一个细胞来说,酶的种类和数量随细胞分化程度的不同而发生变化,C项错误;酶是活细胞产生的具有催化作用的有机物,可在生物体内、外发挥作用,D项错误。

第三节One possible version:Paragraph 1On the Christmas of 1995, a drunken lady said some-thing that amoke him and he realized he had found hisdream girl. That was why the guy did not bother to lookfurther when he realized the girl was not coming backRealizing that he had let away someone so important in hislife. he decided to call her immediately. His whole mindwas flooded with fear. He was afraid that she might havefound someone new or no longer had the same feelings anymore. He tried again and again, never giving up. Finallygot through. He expressed his love for her and thewas moved to tears. She was still waiting for him, nevergiving up.Paragraph 2He decided to y to vancouver to join her. It was thehappiest time of their lizes! But their happy time was short-lived.Two days before he was supposed to fly to Vancou-ver. he received a call from her father. She had a head-oncar collision with a drunken driver. Anyone can imagine theheart-broken feelings he had. Why did fate play such cruelames with him? How he hated himself for taking so long togarealize his mistake I That was in 1996