单项选择题

关于三腔二囊管用于门静脉高压症止血的叙述，下列哪项是不正确的？

A.胃气囊充气量为150~200ml
B.食管气囊充气量为100~150ml
C.管端悬挂物品的重量为0.25~0.5kg
D.使用时间不宜超过5~7天

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Higher cognitive abilities may come with a pitfall-a susceptibility to judging people based on stereotypes.A new study from New York University l that highly intelligent people are quicker to learn stereotypes and base decisions off them.It may come down 2 someone's ability to detect and encode patterns.It's not all bad news 3,as these high-intelligence people are likely to quickly update and 4 their ideas on stereotypes when introduced to new information.For the study,1,257 individuals were shown a（n）5 0f computerized male faces that were paired with a description of past behavior,either positive or negative However,the researchers manipulated avatar faces 6 people with noses that were purposely wider were associated with negative traits,7.those with more narrow noses were associated with positive traits.8this,individuals were asked to complete a task in 9 they had to trust an individual online who was represented by an avatar face 10 those the volunteers were shown in the trait association task.Individuals who 11 higher on pattern detection,12 0f higher intelligence,were also more likely to associate wider noses with negative traits,and were 13 likely to trust wide-nosed avatars in the final task.Pattern detection is an essential part of human intelligence,and is one of the main features that helped our brains evolve 14 what they are today,but the skill has its limits. Finding that higher pattern detection ability 15 people at greater risk to detect and apply stereotypes,but also to reverse them,implicates this ability as a cognitive mechanism 16 stereotyping, added co-author Jonathan Freeman in a statement.While stereotypes can be useful and a way to avoid danger,17 associating police officers with safety or gunmen with danger,there are pitfalls t0 18 people based on a generally held idea.Stereotypes cause you to judge people 19.knowing anything about them-we wouldn't want others to do that to us,20 why not afford them the same Courtesy 1选？

A.found
B.predicted
C.estimated
D.imagined

单项选择题

Text 2 When people talk about a north-south divide in Britain they are usually referring to house prices,employment and the ratio of private-sector to public-sector jobs.The south scores higher on all such measures.But new data from the British Trust for Ornithology（BTO）,a research charity,hints at the growth of another north-south divide-this time to the north's benefit.Every 20 years the BTO produces a superbly detailed atlas of bird life in Britain and Ireland.The 2007 t0 2011 edition is cheery:more species are tallied than in previous atlases,and many birds are increasing in number.Compared with two decades ago,45%of regular native species are ranging more widely while 32%are living in smaller areas;the rest have stayed put.But the most striking news comes from the north.The overall populations of woodland,farmland and migrant perching birds are up in northern England and Scotland but down in the south.The same is true of individual species such as the garden warbler,bullfinch and swallow.The number of cuckoos,a closely-watched species,declined by 63%in England between 1995 and 2010 but by only 5%in Scotland.Raptors are faring especially well in the south,but their numbers are rising in most parts of Britain.Partly this reflects climate change,suggests Simon Gillings of the BTO.Some birds are drawn to warmer winters in Scotland and northem England;visiting migrants may stick around for longer.Hard though it may be to believe during a week of torrential rain,the south is becoming drier,pushing snipe northward.More efficient farming has squeezed some farmland species.Some birds find it harder to make homes in the south,too.Pressure on housing means dilapidated buildings and barns,handy for nesting,have been converted into human dwellings.Between 2006 and 2012 the number of vacant dwellings fell by 17%in London and by 12%in Kent.Over the same period the number of empty houses increased by 16%in Derbyshire and by 10%in Lancashire:Northern mining villages once full of workers are now sparsely populated,points out Ian Bartlett,a birdwatcher in Hartlepool,in north-east England.They have become hot spots for birds and the people who watch them.Culrural difference also plays a part,thinks Mark Cocker,an expert on birds.The obsession with tidiness is stronger in the south,he says.Fewer people cultivate gardens;they prefer to cover them in decking and remove weeds from between concrete slabs.Village greens are mowed short.In contrast,Scotland and northern England have more trees,grassland and wind-swept moors.Less popular with humans,rugged parts of the countryside are filling up with a winged population instead.According to Paragraph 6, culture difference relates to______

A.workingstyle
B.livingenvironment
C.farmingmethod
D.attitudetowardsthebird'sliving