问题
不定项选择题
若发现114号新元素R，下列有关R可能具有的性质不合理的是[ ]
A. R是金属元素
B. R的单质可作半导体
C. R不存在稳定的气态氢化物
D. R的最高价氧化物对应水化物为酸且酸性较强
答案
BD
搜题请搜索小程序“爱下问搜题”
若发现114号新元素R，下列有关R可能具有的性质不合理的是[ ]
A. R是金属元素
B. R的单质可作半导体
C. R不存在稳定的气态氢化物
D. R的最高价氧化物对应水化物为酸且酸性较强
BD
| 完形填空。 | ||||
| It was the afternoon of December 24, the day before Christmas, but I had to stay to tidy the office. The only thing that 1 my day was the beautifully decorated 2 in our waiting room and a 3 sent to me by a fellow I was dating-a dozen long-stemmed red roses. Suddenly, our receptionist came and said there was a lady outside that urgently needed to speak with me. As I stepped out, I noticed a young 4 woman with a baby in her arms standing there. 5 , she explained that her husband-a prisoner in a nearby prison-was my next patient. She told me she wasn't 6 to visit her husband in prison and 7 he had never seen his son. So she 8 me to let her wait here ahead of time. I agreed. 9 , it was Christmas Eve. A short time later, her husband arrived with chains on his feet, cuffs on his hands, and two armed guards 10 him. The woman's tired face 11 when her husband took a seat beside her. I watched them laugh, cry, and share their 12 . He seemed like a gentle and honest man. At the end of the 13 , the man had to go back and I 14 him a Merry Christmas. He smiled and thanked me and said he felt saddened by the 15 that he hadn't been able to get his wife 16 for Christmas. On hearing this, I was 17 with a wonderful idea. I'll never forget the 18 on both their faces as the prisoner gave his wife the beautiful, long-stemmed red roses. I'm not sure who 19 the most joy-the husband in giving, the wife in receiving, or myself in having the opportunity to share in this 20 moment. | ||||
|