问题
单项选择题
以下说法中错误的是（）
A.N2是气相色谱的流动相
B.担体是气液色谱的固定相
C.气相色谱法主要用来分离沸点低、热稳定性好的物质
D.气相色谱法是一个分离效能高、分析速度快的分析方法
E.气相色谱法是从事物理化学学科科学研究的主要工具之一
答案
参考答案：B
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以下说法中错误的是（）
A.N2是气相色谱的流动相
B.担体是气液色谱的固定相
C.气相色谱法主要用来分离沸点低、热稳定性好的物质
D.气相色谱法是一个分离效能高、分析速度快的分析方法
E.气相色谱法是从事物理化学学科科学研究的主要工具之一
参考答案：B
| 根据短文内容，从下框的A-F选项中选出能概括每一段主题的最佳选项。选项中有一项为多余项。 | |
A boy was born to a couple after eleven years of marriage. They were a loving couple and the boy was the apple of their eyes. When the boy was around two years old, one morning the husband saw a medicine bottle open. He was late for work so he asked his wife to cap the bottle and keep it in the cupboard. The mother, preoccupied in the kitchen, totally forgot the matter. 2._____ The boy saw the bottle and playfully went to the bottle and, fascinated with its colour, drank it all. It happened to be a poisonous medicine meant for adults in small dosages. When the child collapsed, the mother hurried him to the hospital, where he died. The mother was stunned. She was terrified how to face her husband. When the distrought father came to the hospital and saw the dead child, he looked at his wife and uttered just four words. What do you think were the four words? The husband just said "I love you darling". 3._____ The husband's totally unexpected reaction I proactive behavior. The child is dead. He can never be brought back to life. There is no point in finding fault with the mother. Besides, if only he had taken time to keep the bottle away, this would not have happened. No point in attaching blame. She had also lost her only child. What she needed at that moment was consolation and sympathy from the husband. That is what he gave her. 4._____ Sometimes we spend time asking who is responsible or who is to blame, whether in a relationship, in a job or with the people we know. We miss out some warmth in human relationship in giving each other support. After all, shouldn't forgiving someone we love be the easiest thing in the world to do? Treasure what you have. Don't multiply pain, anguish and suffering by holding on to forgiveness. 5._____ If everyone can look at life with this kind of perspective, there would be much fewer problems in the world. Take off all your envies, jealousies, unwillingness to forgive, selfishness, and fears and you will find things are actually not as difficult as you think. |