让－保罗·萨特是哪一国家著名的存在主义哲学家：（）

单项选择题提示慢性支气管炎发展为慢性阻塞性肺疾病的突出症状是() A. 进行性加剧的反复咳嗽 B. 逐渐加重的呼吸困难 C. 发热 D. 反复感染、咳大量脓痰 E. 咯血

单项选择题About Pu-er tea, which of the following statement is incorrect?A. It is from Hunan province.B. It is a kind of post-fermented tea.C. It is a kind of dark tea.D. Pu-erh Tea can be divided into cooked and raw types