问题 单项选择题

在下列各项中,可依据其来估计慢性左心衰竭的严重程度的观察项目是

A.发绀的程度

B.持续低流量吸氧时间

C.咳嗽、咳痰的频率和量

D.患者采取的坐位的高低

E.情绪状态

答案

参考答案:D

问答题

你所在的学校要举行党史知识竞赛,主持人提出了几个问题,请你回答:

①在党史上,南昌起义、秋收起义的历史意义是什么?

                                                                                                                                                           

                                                                                                                                                           

②1921——1945年,中 * * 党分别召开了哪三次重要的会议?这三次会议的意义分别是什么?

                                                                                                                                                           

                                                                                                                                                           

                                                                                                                                                           

                                                                                                                                                            

单项选择题