5岁患儿,发热、头痛、呕吐3天,抽搐1次入院,查体:体温39℃,面色苍白,血常规示:

题型:单项选择题 案例分析题

问题:

5岁患儿,发热、头痛、呕吐3天,抽搐1次入院,查体:体温39℃,面色苍白,血常规示:白细胞22×109/L,中性粒细胞占0.88。

若脑脊液细菌培养为肺炎链球菌,应选的抗生素为()

A.青霉素

B.红霉素

C.氨苄西林

D.氯霉素

E.先锋霉素V

考点:贵州住院医师儿科儿科基础与保健儿科基础与保健题库
题型:单项选择题 案例分析题

Multitasking

People who multitask all the time may be the worst at doing two things at once, a new research suggests. The findings, based on performances and self-evaluation by about 275 college students, indicate that many people multitask not out of a desire to increase productivity, but because they are easily distracted (分心) and can’t focus on one activity. And “those people turn out to be the worst at handling different things,” said David Sanbonmatsu, a psychologist at the University of Utah.

Sanbonmatsu and his colleagues gave the students a set of tests and asked them to report how often they multitasked, how good they thought they were at it, and how sensation-seeking (寻求刺激) or imperative (冲动) they were. They then evaluated the participants’ multitasking ability with a tricky mental task that required the students to do simple mathematical calculations while remembering a set of letters.

Not surprisingly, the scientists said, most people thought they were better than average at multitasking, and those who thought they were better at it were more likely to report using a cellphone while driving or viewing multiple kinds of media at once. But those who frequently deal with many things at the same time were found to perform the worst at the actual multitasking test. They also were more likely to admit to sensation-seeking and impulsive behavior, which connects with how easily people get bored and distracted.

“People multitask not because it’s going to lead to greater productivity, but because they’re distractible, and they get sucked into things that are not as important.” Sanbonmatsu said.

Adam Gazzaley, a researcher at the University of California, San Francisco, who was not a member of the research group, said one limitation of the study was that it couldn’t find out whether people who start out less focused   toward multitasking or whether people’s recognizing and understanding abilities change as a result of multitasking.

The findings do suggest, however, why the sensation-seeker who multitask the most may enjoy risky distracted driving. “People who are multitasking are generally less sensitive to risky situations.” said Paul Atchley, another researcher not in the group. “This may partly explain why people go in for these situations even though they’re dangerous.”

小题1: The research led by Sanbonmatsu indicates that people who multitask       .

A.seek high productivity constantly

B.prefer handling different things when getting bored

C.are more focused when doing many things at a time

D.have the poorest results in doing various things at the same time小题2:When Sanbonmatsu and his colleagues conducted their research, they          .

A.assessed the multitasking ability of the students

B.evaluated the academic achievements of the students

C.analyzed the effects of the participants’ tricky mental tasks

D.measured the changes of the students’ understanding ability小题3:According to Sanbonmatsu, people multitask because of their        _.

A.limited power in calculation

B.interests in doing things differently

C.inability to concentrate on one task

D.impulsive desire to try new things小题4: From the last paragraph, we can learn that multitaskers usually____  .

A.drive very skillfully

B.go in for different tasks

C.fail to react quickly to potential dangers

D.refuse to explain the reasons for their behavior

题型:单项选择题 案例分析题

可复体牙髓炎区别于急性牙髓炎浆液期的特点是

A.无温度刺激疼

B.无化学刺激疼

C.无自发性疼痛

D.无探痛

E.无叩痛

题型:单项选择题 案例分析题

下列能引起肾前性肾衰竭的是()

A.低血容量休克

B.盆腔肿瘤压迫输尿管

C.感染性休克

D.四氯化碳中毒

E.挤压伤

题型:单项选择题 案例分析题

下列不属于物业服务企业营业成本的是( )。

A.直接人工费
B.间接费用
C.直接材料费
D.无偿使用的办公房屋

题型:单项选择题 案例分析题

对药物经皮吸收无促进作用的是

A.乙醇
B.山梨酸
C.表面活性剂
D.二甲基亚砜(DMSO)
E.尿素

更多题库