英语周报TJJ外研版2022答案

One possible versionThen I wondered whether the man would still be at the same spot. I walked out the doorand back to the street where I had met him. There the man was, at the same spot, knees curledup against his chest, with the same cardboard sign shading his head. I walked down the street,and before I could think twice, I stood before him. He cautiously glanced in my direction.Ismiled and held up the lunch bag. "I brought you some lunch, "I saidI handed him the bag, and he looked closely at it. " Thank you for this. I was praying thismorning, asking for someone,s heart to open. We talked for a little while. As he shared hisstory, there was an, open, honest tone in his voice. There was something about giving thatmade me feel like I was talking with a brother. "I hope you have a nice day, "I told him<"Thank you! It's already gotten a lot better, " he said. As I walked by, his thank fulness hadbecome mind. My day, too, had already gotten a lot better. Anything helps, indeed

8.C【解析】细胞质中的遗传物质为DNA;遗传信息是指基因中脱氧核苷酸的排列顺序;由于双链DNA分子遵循碱基互补配对原则,A=T,G=C,所以双链DNA分子中嘌呤数等于嘧啶数;DNA分子不含核糖,其基本骨架是由磷酸和脱氧核糖交替连接构成的

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