如果把58的分子加上15,要使分数大小不变,分母应乘______.

题型:填空题

问题:

如果把
5
8
的分子加上15,要使分数大小不变,分母应乘______.
考点:分数的基本性质
题型:填空题

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.

which of the following is used for predicting a person’s level of narcissism and self-esteem()

A. Activities the subjects take apart in

B. Frequency of the experimental object

C. Frequency of the experimental object’s renewing photos

D. The contents of the log of the experimental object

题型:填空题

进口被列入《限制进口可用作原料的废物目录》和《自动进口许可管理类可用作原料的废物目录》的废物,须事先申领:( )。

A.《进口废物许可证》
B.《进口废物登记手册》
C.《进口废物通关单》
D.《进口废物批准证书》

题型:填空题

一级种

题型:填空题

输入前不需血型鉴定和交叉配血的是

A.新鲜全血
B.新鲜血浆
C.冰冻干浆
D.白蛋白液
E.浓缩红细胞

题型:填空题

根据我国海洋货物运输保险条款的规定,保险人的除外责任包括()

A.被保险人的故意行为或过失所造成的损失

B.属于发货人责任所引起的损失

C.在保险责任开始前,被保险货物已存在的品质不良或数量短差所造成损失

D.被保险货物的损耗、本质特性、缺陷及市价跌落、运输延迟所引起的损失或费用

E.由于承运人责任所造成的货损

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