[单项选择]男,44岁,6天前受凉后出现发热,咳嗽,咳黄痰,2天前咳嗽加重,呼吸困难,头痛,腹泻4次,血常规白细胞14×109/L,N86%,胸部X线示左肺大片浸润影,血气分析示pH7.36,PaCO232mmHg,PaO258mmHg。若血清学检查阳性,诊断明确,治疗时间为() A. 2周 B. 3周 C. 4周 D. 4~6周 E. 2月
A. (A) Five years. B. (B) Fi{teen years. C. (C) Fifty years. D. (D) A hundred years. 参考答案:D 答案解析:[听力原文]19-22
W: Professor Pearson, could you give us a brief introduction of the well-known educa