成人膳食脂肪适宜摄入量以占总能量百分比计算,为 A.5%~8% B.10%~15%

题型:单项选择题

问题:

成人膳食脂肪适宜摄入量以占总能量百分比计算,为

A.5%~8%
B.10%~15%
C.20%~30%
D.35%~40%
E.45%~50%

考点:公卫执业医师公卫执业医师
题型:单项选择题

男,53岁,2年前被踢伤胸部,胸片及CT如图,下列描述或诊断正确的是()

A.胸片可见纵隔类圆形高密度影,以侧位片明显

B.CT增强扫描示,造影剂流入球形病灶内

C.结合临床,考虑为主动脉夹层

D.球形病灶外围见半月形低密度影,其内有斑片状高密度影,拟为血栓

E.结合临床,考虑为主动脉假性动脉瘤(外伤性)

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At the tail end of the 19th century, Friedrich Nietzsche suggested that natural history— which he saw as a war against fear and superstition-ought to be narrated "in such a way that everyone who hears it is irresistibly inspired to strive after spiritual and bodily health and vigour," and he grumbled that artists had yet to discover the right language to do this. "None the less," Nietzsche admitted, "the English have taken admirable steps in the direction of that ideal... the reason is that they [natural history books] are written by their most distinguished scholars—whole, complete and fulfilling natures. "
The English language tradition of nature writing and narrating natural history is gloriously rich, and although it may not make any bold claims to improving health and wellbeing, it does a good job—for readers and the subjects of the writing. Where the insights of field naturalists meet the legacy of poets such as Clare, Wordsworth, Hughes and Heaney, there emerges a language as vivid as any cultural achievement.
That this language is still alive and kicking and read every day in a newspaper is astounding. So to hold a century’s worth of country diaries is, for an interloper like me, both an inspiring and humbling experience. But is this the best way of representing nature, or is it a cultural default Will the next century of writers want to shake loose from this tradition What happens next
Over the years, nature writers and country diarists have developed an increasingly sophisticated ecological literacy of the world around them through the naming of things and an understanding of the relationships between them. They find ways of linking simple observations to bigger issues by remaining in the present, the particular. For writers of my generation, a nostalgia for lost wildlife and habitats and the business of bearing witness to a war of attrition in the countryside colours what we’re about. The anxieties of future generations may not be the same.
Articulating the "wild" as a qualitative character of nature and context for the more quantitative notion of biodiversity will, I believe, become a more dynamic cultural project. The re-wilding of lands and seas, coupled with a re-wilding of experience and language, offers fertile ground for writers. A response to the anxieties springing from climate change, and a general fear of nature answering our continued environmental injustices with violence, will need a reassessment of our feelings for the nature we like—cultural landscapes, continuity, native species-as well as the nature we don’t like—rising seas, droughts, "invasive" species.
Whether future writers take their sensibilities for a walk and, like a pack of wayward dogs unleashed, let them loose in hills and woods to sniff out some fugitive truth hiding in the undergrowth, or choose to honestly recount the this-is-where-I-am, this-is-what-I-see approach, they will be hitched to the values implicit in the language they use. They should challenge these. Perhaps they will see our natural history as a contributor to the commodification of nature and the obsessive managerialism of our times. Perhaps they will see our romanticism as a blanket thrown over the traumatised victim of the countryside. But maybe they will follow threads we found in the writings of others and find their own way to wonder.

The major theme of the passage is about ______.

A.the 19th century philosopher Friedrich Nietzsche

B.the development of the discipline of natural history

C.the English language tradition of nature writing

D.the style of nature writing and country diaries

题型:单项选择题

工资水平(W)是劳动者选择“工作”或“休闲”的关键因素。若工资水平提高,劳动者最初会选择增加工作时间,以获得更多收入,此时,劳动力供给量(L)会增加;若工资水平继续提高,以至于劳动者认为休闲比收入增长更重要时,宁愿选择增加休闲而减少工作时间,致使劳动力供给量(L)反而减少。下列能体现这一变化规律的图形是()

题型:单项选择题

卫生检疫机关在国境口岸工作的范围,是指为国境口岸服务的涉外宾馆、饭店、俱乐部,为入境、出境交通工具提供饮食、服务的单位和对入境、出境人员、交通工具、集装箱和货物实施检疫、监测、卫生监督的场所。()

题型:单项选择题

挪拉(NerA)mini—m天线对星方向必须()。

A.无遮挡

B.可以遮挡

C.天线前可以站人遮挡

D.天线前可以玻璃遮挡

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