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Being able to multitask---doing several things at the same time---is considered a welcome skill by most people. But if we consider the situation of the young people aged from eight to eighteen, we should think again. What we often see nowadays is that young people juggle an ever larger number of electronic devices as they study. While working, they also surf on the Internet, send out emails, answer the telephone and listen to music on their iPods. In a sense, they are spending a significant amount of time in fruitless efforts as they multitask. Multitasking is even changing the relationship between family members. As young people give so much attention to their own worlds, they seem to have no time to spend with the other people around them. They can no longer greet family members when they enter the house, nor can they eat at the family table. Multitasking also affects young people’s performance at university and in the workplace. When asked about their opinion of the effect of modern gadgets on their performance of tasks, many young people gave a positive response. However, the response from the worlds of education and business was not quite as positive. Educators feel that multitasking by children has a serious effect on later development of study skills. They believe that many college students now need help to improve their study skills. Similarly, employers feel that young people entering the job market need to be taught all over again, as modern gadgets have made it unnecessary for them to learn special skills to do their work. 小题1:What does the underlined word “juggle” in Paragraph 2 most probably mean? A.Want to buy. B.Take the place of. C.Use at the same time. D.Seek for information from. 小题2:In Paragraph 3, the author points out that  ________. A.family members do not eat at the family table. B.family members do not greet each other. C.young people live happily in their families D.young people seldom talk with their family members 小题3:What is the main idea of the last paragraph? A.multitasking is harmful to young people’s development. B.Young people benefit a lot from modern gadgets. C.Multitasking is an important skill to young people. D.Yong people must learn skills for future jobs. 小题4:The author develops the passage mainly by ________. A.providing typical examples B.following the natural time order C.comparing opinions from different fields D.presenting a cause and analyzing its effects
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A.
经过免疫抑制治疗的患者,该排斥反应在移植后数天内发生
B.
细胞型排斥反应镜下可见肾间质明显水肿伴大量细胞浸润,以单核细胞和淋巴细胞为主
C.
血管型排斥反应表现为肾细、小动脉的坏死性血管炎
D.
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E.
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【简答题】特异危险度或归因危险度(attributable risk,AR)
【简答题】危险因素(risk factor)
【简答题】相对危险度(relative risk,RR)
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A.
中性粒细胞
B.
组织细胞
C.
浆细胞
D.
淋巴细胞
E.
异物巨细胞
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A.
单台风机的噪声值
B.
单台风机噪声值的 2 倍
C.
单台风机噪声值的 3 倍
D.
单台风机噪声值加 3 dB
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A.
肾移植术后排斥反应
B.
尿道炎
C.
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D.
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E.
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A.
其突出的病变是血管内膜纤维化
B.
肉眼观,肾体积明显缩小,并有多少不等的瘢痕
C.
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D.
患者肾功能呈进行性减退,但其程度与间质纤维化和肾小球、肾小管萎缩的程度不成正比
E.
镜下可见肾小球毛细管袢萎缩、纤维化、玻璃样变,肾小管萎缩
【单选题】肾移植后排斥反应镜下可见( )
A.
形态不均一的大量红细胞
B.
多量嗜酸性粒细胞
C.
淋巴细胞
D.
大量白细胞,伴大量扁平上皮细胞
E.
肾小管上皮细胞
【单选题】健康危险因素不包括下面哪种
A.
环境危险因素
B.
行为危险因素
C.
家庭危险因素
D.
生物遗传危险因素
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