【判断题】食管癌的早期症状主要为进食时梗阻感。()
【单选题】监理人员实施旁站时,发现其施工活动已经或者可能危及工程质量的,旁站人员应当( )。
【单选题】What is the author's attitude to the 'gloomy forecast'?
【判断题】承德避暑山庄始建于雍正年间,建成于乾隆年间。
【简答题】A.进食时呛咳 B.进食时有梗噎感 C.进行性吞咽困难 D.进食后呕吐 E.进食后胸腹痛 食管癌的早期症状为 A. B. C. D. E.
【单选题】What's the author's attitude about NBA as a 'bridge'?
【单选题】What's the attitude of the author towards the digital gadgets?
【单选题】How do the public feel about the current economic situation?