《财政部国家税务总局关于暂免征收部分小微企业增值税和营业税的通知》中以1个季度为纳税

生活与化学有着密切的联系，下列叙述中，发生化学变化的是

A．太阳能热水器提供热水

B．空气液化制氧气

C．秸秆、杂草、人畜粪便等发酵产生沼气

D．在晾干的咸菜表面出现食盐晶体

读天津滨海新区的新兴工业

天津滨海新区是我国发展最快的综合配套改革试验区。读图和资料，运用所学知识，回答下列问题。

材料  2007年5月，“空中客车”公司在欧洲之外的首个飞机总装线合作项目落户天津滨海新区，并于2008年8月开始组装第一架空客A320飞机。

每一架大型飞机有上百万个部件，涉及70多个学科和工业领域大部分产业，需要庞大的配套产业群作支撑。

滨海新区通过向国内外招商引资，促使大批高新技术产业集聚；同时，也吸引了大量高素质的人力资源。在天津的总装线上，“中国制造”的比例将从开始的15%逐年上升，并以此为契机，逐步加快国家民航高科技产业化基地建设。

到2015年底，该总装线生产的飞机将全部销往国内，以后再考虑出口到周边国家和地区。

（1）在经济全球化背景下，“空中客车”公司在天津选址的主导因素是_________；而中方需要从发达国家引进___________和__________（3分）

（2）与传统工业相比，航空工业等高新技术产业通常具有哪些特点？（5分）

（3）简述天津滨海新区发展新兴工业的优势区位因素。（6分）

西藏民歌《翻身农奴把歌唱》，属于哪种舞蹈样式的音乐（）？

A.果谐

B.弦子

C.堆谐

D.踢踏

教案的内容有：基本情况或教学背景，教学目标，重点与难点，教学用具准备，教学过程和（）。

A．教学方法

B．教学评价

C．教学内容

D．教学环境

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.

Narcissists may（）

A. be online for a long time

B. only upload the photos of their own

C. own the p sympathy

D.be self-serving