影响肾小球滤过的因素有() A.全身动脉血压和肾小球毛细血管血压下降 B.肾小囊内压

题型:多项选择题

问题:

影响肾小球滤过的因素有()

A.全身动脉血压和肾小球毛细血管血压下降

B.肾小囊内压升高时,使有效滤过压降低,肾小球滤过率也减少

C.全身血浆蛋白的浓度明显降低时,血浆胶体渗透压下降,有效滤过压升高

D.肾小球的血浆流量对肾小球滤过率亦有很大影响

E.心率加快

考点:急诊医学(医学高级)医学高级急诊医学(副高)特训密卷八
题型:多项选择题

下列有关溶液的说法中,正确的是[ ]

A.固体物质的溶解度都随温度的升高而增大

B.一定温度下,饱和溶液增加溶剂一定变为不饱和溶液

C.将30g硝酸钾投入到70g水中,所得溶液质量一定是100g

D.5g食盐完全溶于100g水中,所得溶液中溶质的质量分数为5%

题型:多项选择题

超临界萃取法提取挥发油时常用的超临界流体是()

A.CO2

B.CO

C.Me2CO

D.EtOH

E.SO2

题型:多项选择题

变异指标反映了总体分布的()。

A、集中趋势

B、离中趋势

C、长期趋势

D、基本趋势

题型:多项选择题

The history of African—Americans during the past 400 years is traditionally narrated (1) an ongoing struggle against (2) and indifference on the part of the American mainstream, and a struggle (3) as an upward movement is (4) toward ever more justice and opportunity.

Technology in and of (5) is not at fault; it’s much too simple to say that gunpowder or agricultural machinery or fiber optics (6) been the enemy of an (7) group of people. A certain machine is put (8) work in a certain way—the purpose (9) which it was designed. The people who design the machines are not intent on unleashing chaos; they are usually trying to (10) a task more quickly, cleanly, or cheaply, (11) the imperative of innovation and efficiency that has ruled Western civilization (12) the Renaissance.

Mastery of technology is second only (13) money as the true measure of accomplishment in this country, and it is very likely that by (14) this under-representation in the technological realm, and by not questioning and examining the folkways that have (15) it, blacks are allowing. (16) to be kept out of the mainstream once again. This time, however, they will be (17) from the greatest cash engine of the twenty-first century. Inner-city blacks in particular are in danger, and the beautiful suburbs (18) ring the decay of Hartford, shed the past and learn to exist without contemplating or encountering the tragedy of the inner city.

And blacks must change as well. The ways that (19) their ancestors through captivity and coming to freedom have begun to loose their utility. If blacks (20) to survive as full participants in this society, they have to understand what works now.

14()

A.totolerate

B.tolerate

C.tolerated

D.tolerating

题型:多项选择题

硝苯地平治疗心绞痛作用原理是()

A.减慢心率、降低心肌收缩力、减少心肌耗氧量

B.通过抑制钙离子进入冠状、周围血管壁平滑肌细胞内而扩张冠脉及周围血管

C.抑制血小板聚集

D.改善心肌营养与代谢

E.扩张冠脉及外周血管,减轻心脏负担

更多题库