题目

在制作玻片标本的过程中，盖玻片的一侧要先接触水滴再放下的原因是(     ) A．防止水溢出 B．防止观察材料受损害 C．防止出现气泡 D．防止盖玻片受损 答案：C阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。Ms. Mary was over eighty, but she still drove her old car like half her age. She loved driving very fast, and boasted of the fact 1. she had never, in her thirty-five years of driving, been punished 2. a driving mistake.Then one day, she nearly lost her record. A police car followed her, and the policemen in it saw her pass a red light without 3. (stop).When Ms. Mary came before the judge, he looked at her _4.__(severe) and said that she was too old to drive a car, and that the reason 5. she had not stopped at red light was most probably that her eyes had become weak with old age, __6.__ she had simply not seen it.When the judge had finished what he was saying, Ms. Mary opened the big handbag she was carrying and took out her sewing. Without saying a word, she 7. (choose) a needle with a very small eye, and threaded it at the first time.When she had successfully done this, she took the thread out of the needle again and handed __8._ the needle and thread to the judge, saying, “Now it is your turn. I suppose you can drive 9. car well, and you have no doubts about your eyesight.”The judge took the needle and tried to thread it. After half a dozen times, he had still not __10.__(success). The case against Ms. Mary was dismissed, and her record remained unbroken.