2012年我国经济社会发展的总基调是_________

简单的活动最佳动机水平（）；复杂的活动最佳动机水平（）；适中的活动最佳动机水平（）。
我国四大盆地中位于第一阶梯的是（??）
关于我国地理的相关知识，以下说法正确的是（??）
政府应当是公共产品和服务的唯一提供者。（??）
当前，我国消费者购买商品越来越趋于理性，“货比三家”，关注更多的是商品的“性价比”。消费者购买商品看重“性价比”，这是（??） ①对商品价值和交换价值的考量 ②对商品使用价值的衡量 ③求实心理主导的消费 ④对商品价值与使用价值的综合权衡
人民与公民在法律上是相同概念。（??）
He works ten hours a day， makes more than US $ 98000 a year， doesn′t 16 to take holidays， dresses 17 he pleases. He′s 18 been happier and is looking for another job. This 33-year-old white， university-educated person is the typical Internet worker， according to a study by the Industry Standard， a San Francisco-based news magazine. There is also a reasonable chance that his employer will arrange his dry cleaning，19 him to 20 his dog to work， offer him flee massages and give him stock options. And he still thinks people in other 21 are doing 22 . The typical worker， it appears， not only enjoys an income about 23 the national average but also enjoys himself. At present 2.5 million people 24 by Internet firms in the US. The 25 of the study give plenty of reasons 26 so many people think the grass is greener in Silicon Valley. 27 after tech-stocks sharply 28 in April， 29 many start-ups， there is still mood of enthusiasm and special advantage among those still employed. So what 30 52 percent of them "very happy"? "Demanding work" is given as the main reason and "salary" is 31 close 32 . Those questioned in the study also listed working weekends and 33 holidays as signs of the pleasure of the workplaces. Only 13 percent were paid for 34 hours work while 14 percent put more than 12 hours work on an average day. "It wasn′t all about 35 ." wrote Mary Ann Thompson in the introduction to the study， "It was fun." 第（20）题选
如图，已知图中四边形两条边的长度和三个角的度数，四边形ABCD的面积是______cm2。 <img border="0" alt="" src="data\459\9605531_0.png">
根据下面资料，回答题 In New York， Ma Yun witnessed the Alibaba Group opening on the New York stock exchange with the largest initial public offering (IPO，新股发行) in American history. "Alibaba， the world′s largest Internet commerce company makes China equal to the US in the rapidly increasing global competition for technological innovation and economic transformation" commented the South China Morning Post. It has also made Ma China′s richest man with a fortune of around $25 billion (153 billion yuan)， reported Reuters. It′ s reported that Ma′ s rags-to-riches journey is just as spectacular as his Internet Empire. Ma failed the national college entrance exams twice before he was finally in Hangzhou Normal University on his third attempt and failed in finding a suitable job several times. Also， Mr. Ma is a big believer in perseverance， which was proved in his English study experience. However， it was his vision and goals that launched his career. During a short trip to the US as an interpreter in 1995， Ma first experienced the Internet. He believed in the Internet’s business potential when few other Chinese people did. He started Alibaba in his Hangzhou apartment， with 17 friends and $60，000 of funds. At the time， when e-commerce was unheard of in China， "I called myself a blind man riding on the back of blind tigers，" he once said， according to The Guardian. His unusual ideas earned him the nickname "Crazy Jack Ma". Indeed， Ma is different. Although he is very thin and about 160cm tall， "Ma is yet animated and forceful，" said The Guardian. "He is funny， creative， and a compelling speaker." Ma told Time magazine that he was "old for the Internet".He started to slow down and looked around. According to The Wall Street Journal， Ma "plans to open a tai chi club with the actor Jet Li， build an entrepreneur university in Hangzhou and continue to work on several environmental projects." What made him into e-commerce industry 查看材料
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2012年我国经济社会发展的总基调是__________。