早产儿,34周出生,出生时困难,Apgar评分7分,生后5h出现进行性呼吸困难及紫绀

题型:单项选择题 A3型题

问题:

早产儿,34周出生,出生时困难,Apgar评分7分,生后5h出现进行性呼吸困难及紫绀,两肺呼吸音低,深吸气末少量湿性啰音。

最可能的诊断是()

A.羊水吸入综合征

B.感染性肺炎

C.持续发生肺动脉高压

D.新生儿湿肺

E.肺透明膜病

考点:儿科住院医师新生儿及新生儿疾病新生儿及新生儿疾病题库
题型:单项选择题 A3型题

在决胜局比赛中,女子双打在一方先得到()分时,双方运动员需要交换场地。

A、8

B、11

C、6

题型:单项选择题 A3型题

出血性中风与缺血性中风最有鉴别价值的辅助检查为 ()

A.脑血管造影

B.头颅CT

C.腰穿

D.TCD

E.SPECT

题型:单项选择题 A3型题

A study released a little over a week ago, which found that eldest children end up, on average, with slightly higher IQ’s than younger siblings, was a reminder that the fight for self-definition starts much earlier than freshman year. Families, whatever the relative intelligence of their members, often treat the firstborn as if he or she were the most academic, and the younger siblings fill in other niches: the wild one, the flirt.

These imposed caricatures, in combination with the other labels that accumulate from the sandbox through adolescence, can seem over time like a miserable entourage of identities that can be silenced only with hours of therapy. But there’s another way to see these alternate identities: as challenges that can sharpen psychological skills. In a country where reinvention is considered a birthright, many people seem to treat old identities the way Houdini treated padlocked boxes: something to wriggle free from, before being dragged down. And psychological research suggests that this ability can be a sign of mental resilience, of taking control of your own story rather than being trapped by it.

The late-night bull sessions in college or at backyard barbecues are at some level like out-of-body experiences, allowing a re-coloring of past experience to connect with new acquaintances. A more obvious outlet to expand identity—and one that’s available to those who have not or cannot escape the family and community where they’re known and labeled—is the Internet. Admittedly, a lot of the role-playing on the Internet can have a deviant quality. But researchers have found that many people who play life-simulation games, for example, set up the kind of families they would like to have had, even script alternate versions of their own role in the family or in a peer group.

Decades ago the psychologist Erik Erickson conceived of middle age as a stage of life defined by a tension between stagnation and generativity-a healthy sense of guiding and nourishing the next generation, of helping the community. Ina series of studies, the Northwestern psychologist Dan P. McAdams has found that adults in their 40s and 50s whose lives show this generous quality—who often volunteer, who have a sense of accomplishment—tell very similar stories about how they came to be who they are. Whether they grew up in rural poverty or with views of Central Park, they told their life stories as series of redemptive lessons. When they failed a grade, they found a wonderful tutor, and later made the honor roll; when fired From a good job, they were forced to start their own business.

This similarity in narrative constructions most likely reflects some agency, a willful reshaping and re-imagining of the past that informs the present. These are people who, whether pegged as nerds or rebels or plodders, have taken control of the stories that form their identities.

In conversation, people are often willing to hand out thumbnail descriptions of themselves:" I’m kind of a hermit." Or a talker, a practical joker, a striver, a snob, a morning person. But they are more likely to wince when someone else describes them so authoritatively.

Maybe that’s because they have come too far, shaken off enough old labels already. Like escape artists with a lifetime’s experience slipping through chains, they don’t want or need any additional work. Because while most people can leave their family niches, schoolyard nicknames and high school reputations behind, they don’t ever entirely forget them.

A recent study shows that()

A. the firstborns and younger siblings are often treated differently

B. higher IQ holders in a family are always the eldest

C. the firstborns in a family often become more academic

D. the younger siblings are more likely to be ill-treated

题型:单项选择题 A3型题

驾驶大型车的驾驶人不需要系安全带。

题型:单项选择题 A3型题

乙烯和氢气混和后,注入到色谱前的做用下列说法正确的是()。

A、有利于超前调节

B、有利于和循环气混和

C、有利于防止连接管口堵

D、有利于氢气和乙烯在进入反应器前进行良好混和

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