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 成人高等教育 / 病原生物学
正确率:100%

以噬菌体为载体,将供菌遗传物质转移到受菌中的过程是:
  • A、
    转化
  • B、
    转导
  • C、
    接合
  • D、
    溶原性转换
  • E、
    原生质融合
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  • 题型描述: 阅读理解When I was a little girl, my brothers and I collected stamps for many years. My mother didn't use to work during the week, but she worked in the post office near our house on Saturdays, and she used to bring home all the new stamps as soon as they were issued (发行).On the day of the World Cup football final in London in 1966, we were very excited because England were playing West Germany in the final. When we were having lunch, my mother told us to go to the post office straightaway after the match if England won, but she didn't tell us why. At 2 o'clock my mother went back to work as usual, while the rest of the family were watching the football on TV at home. Although she wasn't watching the match, she was listening to it on the radio.England won 4:2 and so my brothers and I ran to the post office. As we burst in, my mother was standing behind the counter. She was waiting to sell us a very special limited edition with ENGLAND WINNERS on each stamp. We were over the moon.We still have it today,and perhaps it is worth a lot of money.1、 What is the best title for this passage? A. My Mother B. A Memorable Experience in Collecting Stamps C. A Precious Stamp D. My Childhood 2、 What does the sentence "We were over the moon." mean? A. We couldn't sleep the whole night. B. We were extremely happy about it. C. We watched the moon for a long time. D. We jumped high. 3、 Their mother told them to go to the post office straightaway after the match if England won, but she didn't tell them why. Why do you think she did that? A. She wanted to give them a surprise. B. She forgot to do that. C. She doubted if she would get the stamps. D. She thought it unnecessary to tell them the reason. 4、 According to the passage, her mother worked in the post office _ _ _ _ _ _ . A. on Saturdays B. during the week C. for six days D. on Sundays 5、 This passage mainly tells us _ _ _ _ _ _ . A. the author and her brother used to like stamps very much B. the author had a very kind mother C. the author and her brothers had an unforgettable experience in collecting stamps D. their mother used to support them by working in the post office统考英语B
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