贫血是指外周血单位体积中() A.红细胞计数低于正常 B.红细胞计数和血红蛋白浓度低

题型:单项选择题

问题:

贫血是指外周血单位体积中()

A.红细胞计数低于正常

B.红细胞计数和血红蛋白浓度低于正常

C.红细胞比容低于正常

D.红细胞计数、血红蛋白浓度及红细胞比容低于正常

E.循环血容量不足

考点:导游基础知识西医病种西医病种题库
题型:单项选择题
给出下列说法:
①从匀速传递的产品生产线上每隔20分钟抽取一件产品进行某种检测,这样的抽样为系统抽样;
②若随机变量若ξ-N(1,4),P(ξ≤0)=m,则P(0<ξ<1)=
1
2
-m;
③在回归直线
ˆ
y
=0.2x+2中,当变量x每增加1个单位时,
ˆ
y
平均增加2个单位;
④在2×2列联表中,K2=13.079,则有99.9%的把握认为两个变量有关系.
附表:
P(k2≥k00.050.0250.0100.0050.001
k03.8415.0246.6357.87910.828
其中正确说法的序号为______(把所有正确说法的序号都写上)
题型:单项选择题

下列()是可以起到集思广益作用的风险识别方法。

A.经济权据法

B.风险调查法

C.专家调查法

D.流程图法

题型:单项选择题

对监理机构而言,()是一个管理岗位,不是技术职称。

A.设备监理工程师

B.总监理工程师

C.项目经理

D.设备监理公司经理

题型:单项选择题

Blues Starting my own section of blues recommendations fills me with a creeping sense of guilt and complicity. Why Because I’m a white guy writing about an almost completely black genre-black, at least in its origins and in the artists that brought the blues to its zenith in the 50’s and 60’s Unlike, say jazz or soul , white performers played little or no positive role in the development of the blues. What positive effect whites had been far outweighed by the commercial exploitation and social exclusion blues pioneers met at every crossroads. Further, there have been absolutely no significant white blues performers. A few are only imitators. Most can’t even properly be called blues musician: they played rock , folk , or pop music influenced by the blues , and much of it was unabashedly horrible , Mostly, though , writing about the blues makes me feel complicit in the unseemly, modern "blues revival" , a movement almost completely white and unoriginal , a popular uprising of middle-class , middle-aged (usually drunk) white guys pretending that they know something about oppression , depravity, rebellion , and the contradictory celebration of life arises from those conditions . These things are the essence of the blues, and, being a middle-class, middle-aged white guy I can vouch that we know nearly nothing about them. So why am I here Well, I can also youth that the blues, like all music, is a universal language, and I have come to understand it academically, if not experientially. Eventually, I came to love blues music if only for its influence on music more akin to my world-rhythm and blues, soul, rock-but in its own right too. In a general way , the blues speak to things we all have in common-love , betrayal , anger , death-and , from that perspective , I , too , got a right to sing the blues-just , well , not in public. On the other hand, as mentioned above, the blues world is now dominated by while folks. The records are made by while performers, many of them talented and certainly well- meaning but often sanitized and uninspired in ways anathema to the blues. White blues musicians frequently teeter on the precipice of caricature. Like Amos N’ Andy they trade in grossly rendered black mannerisms; that they do it out of love for the form rather than derision of the race seems a poor excuse. Sadly, though, most modern blues records-the good ones as well as the bad-are sold almost exclusively to white folks, too. The black audience for blues music has dwindled down to an older, mainly southern crowd of diehard. So, let’s be honest. I come to praise that original style. Indeed, in my research and writing, I hope to increase my own understanding and appreciation for it. And I hold no particular grudge against modern blues, though modern players will be few and far between among my recommendations Mainly, I cannot ignore the fact that modern blues fans made rich men out of John Lee Hooker, B, B, King, Buddy Guy, and other deserving old masters. But, also, there are modern artists who have made great blues records, Many of these artists are from my home state of Texas, so it seems unpatriotic, if not dishonest, not to acknowledge this fact.

According to the author, the essence of the blues is something about ______.

A.the whites

B.the blacks

C.imitation, development and celebration

D.oppression, depravity and rebellion

题型:单项选择题

肝细胞合成血浆蛋白的结构是()

A.线粒体

B.粗面内质网

C.高尔基复合体

D.核糖体

E.扁平囊泡

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