一定质量的理想气体处于某一初始状态,若要使它经历两个状态变化过程,压强仍回到初始

题型:选择题

问题:

一定质量的理想气体处于某一初始状态,若要使它经历两个状态变化过程,压强仍回到初始的数值,则下列过程中,可以采用(    )

A.先经等容降温,再经等温压缩

B.先经等容降温,再经等温膨胀

C.先经等容升温,再经等温膨胀

D.先经等温膨胀,再经等容升温

考点:理想气体状态方程
题型:选择题

客车禁止通过驼峰,调车时禁止()。

A、减速器

B、驼峰

C、用铁鞋

D、溜放

题型:选择题

感染性休克扩容治疗要求达到以下哪些指标()。

A.组织灌注良好,神清、口唇红润、肢端温暖、紫绀消失

B.收缩压>90mmHg,脉压>30mmHg

C.脉率<100次/分

D.尿量>30ml/小时

E.血红蛋白恢复至基础水平,血液浓缩现象消失

题型:选择题

在我国,班氏丝病的主要传播媒介是()

A.致倦库蚊和淡色库蚊

B.曼蚊

C.窄卵按蚊

D.马蝇或红蝇

E.中华按蚊

题型:选择题

防毒面具滤料要求其滤毒性能好,不同毒物宜选用的适宜滤料——硫酸酮适用于

A.氨
B.苯
C.一氧化碳
D.氰化物
E.汞

题型:选择题

Florence Nightingale is most remembered as a pioneer of nursing and a reformer of hospital sanitation methods. For most of her ninety years, Nightingale pushed for reform of the British military health-care system and with that the profession of nursing started to gain the respect it deserved. Unknown to many, however, was her use of new techniques, of statistical analysis, such as during the Crimean War when she plotted the incidence of preventable deaths in the military. She developed a method to prevent the needless deaths caused by unsanitary conditions and the need for reform. With her analysis, Florence Nightingale revolutionized the idea that social phenomena could be objectively measured and subjected to mathematical analysis. She was an innovator in the collection, interpretation, and display of statistics.

Florence Nightingale’s two greatest life achievements-pioneering of nursing and the reform of hospitals-were amazing considering that most Victorian women of her age group did not attend universities or pursue professional careers. It was her father, William Nightingale, who believed women, especially his children, should get an education. So Nightingale and her sister learned Italian, Latin, Greek, history, and mathematics. She in particular received excellent early preparation in mathematics.

During Nightingale’s time at Scutari, she collected data and systematized record-keeping practices. Nightingale was able to use the data as a tool for improving city and military hospitals. Nightingale’s calculations of the death rate showed that with an improvement of sanitary methods, deaths would decrease. In February, 1855, the death rate at the hospital was 42.7 percent of the cases treated. When Nightingale’s sanitary reform was implemented, the death rate declined. Nightingale took her statistical data and represented them graphically.

As Nightingale demonstrated, statistics provided an organized way of learning and lead to improvements in medical and surgical practices. She also developed a Model Hospital Statistical Form for hospitals to collect and generate consistent data and statistics. She became a Fellow of the Royal Statistical Society in 1858 and an honorary member of the American Statistical Association in 1874. Karl Pearson acknowledged Nightingale as a "prophetess" in the development of applied statistics.

Where did Nightingale prove her method could really reduce the death rates()

A.Scutari

B.Victorian

C.Crimean

D. Royal Statistical Society

更多题库