问题
名词解释
疯牛病
答案
参考答案:
疯牛病:是牛海绵状脑病的俗称,主要流行于欧洲,特别是英国。患病牛表现为步态不稳,体重下降以及神经质,甚至狂乱,因此称疯牛病。其脑组织呈典型的朊毒体疾病表现,可传染给其他动物,人食用后可致新变异型克-雅病。
疯牛病
参考答案:
疯牛病:是牛海绵状脑病的俗称,主要流行于欧洲,特别是英国。患病牛表现为步态不稳,体重下降以及神经质,甚至狂乱,因此称疯牛病。其脑组织呈典型的朊毒体疾病表现,可传染给其他动物,人食用后可致新变异型克-雅病。
从每题A、B、C、D四个选项中,选出一个最佳答案完成对话。 A: Good morning , Joe . B: Good morning , Peter . A: You look unhappy , what’s wrong ? B: Oh, ____ 1 ____ I don’t look cool . A: Well , maybe you should buy some clothes . B: Yes , but ____ 2 ____ A: Hmm, maybe you could get a part-time job in the evenings. B: I can’t , because my parents want me to stay at home every night .____3 ____ A: Well , you shouldn’t argue with your parents .You should talk about your problems . B: And guess ____ 4 ____ A: What? B: My brother plays his CDs too loud! ____ 5 ____ A: I’m sorry to hear that .
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