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简述DNS SEC的不足。
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  • 1[填空题] I think I’ve always been interested in food. My grandparents lived on a farm in Lincolnshire and had a good    41   . She made fantastic English food; her roast beef was out of this world. I used to love going down to the    42    and watching her work, and I learned a lot from her. I realized that I wanted to be a cook when I was about 12. When other boys   43   to do sports after school, I helped with cooking at home. By the time I was 15, I had    44    to be a cook.    However, I knew my parents wouldn’t allow me to be a cook. I had to tell them about it    45.    I told them that I wanted to do a cookery course for fun, and stayed for a month in a hotel in Torquay. I enjoyed it so much that I couldn’t put off telling my parents any longer,   46   I brought the subject up one night over dinner.  47   there was silence, and then my father asked me why. I explained that cooking was   48   painting a picture or writing a book. Every meal was a work of creation. I could see that my father disagreed, but he was not   49  . He just looked at me and smiled. My mother kissed me. And now I have my own restaurant, and it goes well. I can see they are   50  me. However, my grandfather thinks I’m mad to give up farming.41. A. farmer      B. painter       C. cook         D. nurse   42. A. restaurant   B. hotel         C. farm         D. kitchen  43. A. chose       B. refused      C. hated         D. failed   44. A. decided     B. agreed       C. managed      D. turned  45. A. easily       B. softly        C. slowly        D. quietly 46. A. but        B. so           C. or            D. for     47.A. At first      B. At last       C. At least       D. At times 48 A. with         B. like        C. about          D. above  49. A. patient      B. satisfied     C. quiet           D. angry  50. A. proud of     B. sorry for     C. friendly to    D. strict with 大学英语(I)
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