儿童如果长期不注意坐、立、行走的正确姿势,就会引起脊柱变形,这是因为他们骨的特点

题型:选择题

问题:

儿童如果长期不注意坐、立、行走的正确姿势,就会引起脊柱变形,这是因为他们骨的特点是     ……………………………………………………………  (   )

A.弹性小,硬度小,容易变形

B.弹性大,硬度小,容易变形

C.弹性大,硬度大,容易变形

D.弹性小,硬度大,不容易变形

考点:青春期
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绞车司机的“三知四会”是什么?

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供学生使用的物品中,除了文具、娱乐器具,还有以下哪项必须符合国家有关卫生标准()。

A.体育用品

B.劳动用品

C.教材

D.保健用品

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沾染zhān rǎn

题型:选择题

图17-10为RouterB上的路由表信息,写出查询路由表的命令: (1) 。该路由器上运行的路由协议为 (2)

行政办公楼部门A所属网络地址是 (3) ,部门B所属网络地址是 (4) 。在主机D上使用命令Tracert DNSServer,显示结果如图17-11所示。

根据以上信息,完成主机D的Internet,协议属性配置。

主机D的IP地址: (5)

主机D的子网掩码: (6)

域名服务器IP地址: (7)

主机D的默认网关: (8)

(4)处填()

题型:选择题

Social-networking sites offer users easy ways to present idealized images of themselves, even if those ideals don’t always square with their real-world personalities. Psychology researcher Soraya Mehdizadeh has discovered a way to poke through the offline-online curtain: she has used Faeebook to predict a person’s level of narcissism and self-esteem.

Mehdizadeh, who conducted the study as an undergraduate at Toronto’s York University, gained access to the Faeebook accounts of 100 college students and measured activities like photo sharing, wall postings and status updates; she also studied how frequently users logged on and how often they remained online during each session. Her findings were published recently in Cyberpsyehology, Behavior and Social Networking.

After measuring each subject using the Narcissism Personality Inventory and Rosenberg Self-Esteem Scale, Mehdizadeh, who graduated from York this past spring, discovered narcissists and people with lower self-esteem were more likely to spend more than an hour a day on Facebook and were more prone to post self-promo-tional photos ( striking a pose or using Photoshop, for example). Narcissists were also more likely to showcase themselves through status updates (using phrases like "I’m so glamorous I bleed glitter") and wall activity (posting self-serving links like " My Celebrity Look-alikes" ).

Self-esteem and narcissism are often interrelated but don’t always go hand in hand. Some psychologists believe that narcissists--those who have a pervasive pattern of grandiosity, a need for admiration, as well as a lack of sympathy--unconsciously inflate their sense of self-importance as a defense against feeling inadequate. Not enough empirical research has been produced to confirm that link, although Mehdizadeh’s study seems to support it. Because narcissists have less capacity to sustain intimate or long-term relationships, Mehdizadeh thinks that they would be more drawn to the online world of virtual friends and emotionally detached communication.

Although it seems that Facebook can be used by narcissists to fuel their inflated egos, Mehdizadeh stops short of proclaiming that excessive time spent on Faeebook can turn regular users into narcissists. She also notes that social-networking sites might ultimately be found to have positive effects when used by people with low self-esteem or depression. "If individuals with lower self-esteem are more prone to using Facebook," she says, "the question becomes, ’ Can Facebook help raise self- esteem by allowing patients to talk to each other and help each other in a socially interactive environment’ I don’t think it’s necessarily a bad thing that people with low self-esteem use Facebook.

According to the views of psychologists (Para 4, line 2), narcissists would()

A. make themselves feel adequate

B.show their differences

C. obtain the respect of others

D.defense against feeling insufficient

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