问题
问答题 简答题
采取白色石膏修补陶瓷文物的优缺点
答案
参考答案：
优点
①操作简便。
②取材容易、来源丰富。
③价格便宜。
缺点
①强度不够。
②怕水浸。
③怕重压。
搜题请搜索小程序“爱下问搜题”
采取白色石膏修补陶瓷文物的优缺点
参考答案：
优点
①操作简便。
②取材容易、来源丰富。
③价格便宜。
缺点
①强度不够。
②怕水浸。
③怕重压。
Four years ago, I felt lucky after escaping one of those terrible 2-mile runs. I hated running; it was just something that 1 came easily to me. At that time, if you had told me that I would one day run a marathon, I’ d have told you honestly that I had a better 2 of winning the lottery（ * * ）. The turning 3 came when I met Mrs. Green. She was fifty years old, going through chemotherapy（化学疗法）for her cancer, and still managed to run 30 miles a week. I thought that if Mrs. Green could run 6 miles at a time, I could run at least two. In February, in cold weather, I started a 2-mile 4 around my neighborhood. Two months later, I 5 the running for the first time. I felt very tired, but I felt happy. Over the next several years, I continued to push each run for a few 6 minutes, slowly building my endurance（耐力）. I didn’t need to 7 against other runners, for my most important competitor was myself. After continuing to 8 myself, I knew it was time to step my training up. I 9 I would train for the Detroit Free Press/Flagstar Marathon. The race day 10 came, and I was filled with excitement and worry. It was final time to see what I was made of. The 11 ended up surprisingly. I did 12 through the last few miles, but after my running, there was no doubt in my mind that I’d finished. As I 13 the finish line, I experienced the strongest sense of 14 and happiness I had ever had in my life. I am now a marathoner. As John Bingham once said, “The miracle（奇迹）isn’t that I finished. The miracle is that I had the 15 to start.”
|