第24题: [单项选择]连续传播造成的流行或暴发的特点是() A. 全部病例在一个最长潜伏期内 B. 发病曲线突然升高,很快下降 C. 有一个流行高峰 D. 病例分批出现,可以划分成代 E. 流行曲线一般不留拖尾现象 参考答案:D
第25题: [单项选择]How did the author feel early in the morning A. He felt burdened with responsibilities. B. He felt puzzled by the dramatic situations. C. He felt cheerful and happy. D. He felt horrified by the war. 参考答案:B 答案解析:这是一篇故事,通过作者在第一段的描写“...felt myself rather like the sun,ready to shine and
feel joy. Life never seeme