大量输血时可致()A.心脏负荷加重 B.凝血异常 C.枸橼酸中毒 D.高脂血症 E.

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问题:

大量输血时可致()

A.心脏负荷加重

B.凝血异常

C.枸橼酸中毒

D.高脂血症

E.低蛋白血症

考点:医学三基(医师)临床输血学临床输血学题库
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节流调速回路按节流阀的位置不同可分为()节流调速、()节流调速和()节流调速回路三种。

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某企业编制“生产预算”,预计第一季度期初存货为120件;预计销售量第一季度为1500件、第二季度为1600件。该企业存货数量通常按下期销售量的10%比例安排期末存货,则“生产预算”中第一季度的预计生产量为( )。

A.1540

B.1460

C.1810

D.1530

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如图所示,一固定在地面上的金属轨道ABC,其中AB长s1=1m, BC与水平面间的夹角为α=37°,一小物块放在A处,小物块与轨道间的动摩擦因数均为μ=0.25,现在给小物块一个水平向左的初速度v0=3m/s。小物块经过B处时无机械能损失(sin37°=0.6,cos37°=0.8,g取10m/s2)。求:

(1)小物块第一次到达B处的速度大小;

(2)小物块在BC段向上运动时的加速度大小;

(3)若小物块刚好能滑到C处,求BC长s2

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“洞穴之喻”是以下哪一位希腊哲学家提出的著名概念?()

A.巴门尼德

B.苏格拉底

C.柏拉图

D.亚里士多德

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Historians have only recently begun to note the increase in demand for luxury goods and services that took place in eighteenth-century England. MeKendrick has explored the Wedgewood Firm’s remarkable success in marketing luxury pottery. Plumb has written about the proliferation of provincial theaters, musical festivals and children’ s toys and books. While the feat of this consumer revolution is hardly in doubt, three key questions remain : Who were the consumers What were their motives And what were the effects of the new demand for luxuries

An answer to the first of these has been difficult to obtain. Although it has been possible to infer from the goods and service actually produced what manufacturers and servicing trades thought their customers wanted, only a study of relevant personal documents written by actual consumers will provide a precise picture of who wanted what. We still need to know how large this consumer market was and how far down the social scale the consumer demand for luxury goods penetrated. With regard to this last question, we might note in passing that Thompson, while rightly restoring laboring people to the stage of eighteenth-century English history, has probably exaggerated the opposition of these people to the inroads of capitalist consumerism in general: for example, laboring people in eighteenth-century England readily shifted from home-brewed beer to standardized beer produced by huge, heavily capitalized urban breweries.

To answer the question of why consumers became so eager to buy, some historians have pointed to the ability of manufacturers to advertise in a relatively uncensored press. This, however, hardly seems a sufficient answer. MeKendriek favors a Viable model of conspicuous consumption stimulated by competition for status. The " middling sort" bought goods and services because they wanted to follow fashions set by the rich. Again, we may wonder whether this explanation is sufficient. Do not people enjoy buying things as a form of self-gratification If so, consumerism could be seen as a product of the rise of new concepts of individualism and materialism, but not necessarily of the frenzy for conspicuous competition.

Finally, what were the consequences of this consumer demand for luxuries MeKendriek claims that it goes a long way toward explaining the coming of the Industrial Revolution. But does it What, for example, does the production of high-quality potteries and toys have to do with the development of iron manufacture or textile mills I t is perfectly possiMe Go have the psychology and reality of consumer society without a heavy industrial sector.

That future exploration of these key questions is undoubtedly necessary should not, however, diminish the force of the conclusion of recent studies: the insatiable demand in the tenth-century England for frivolous as well as useful goods and services foreshadows our own world.

The author uses the example in the end of Paragraph 2 to()

A. illustrate that laboring people were ignored

B. illustrate that laboring people also had great consumptive power

C. predict that laboring people would always shift to capital urban breweries

D. explain why capitalists had such great consumptive power

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