问题 单项选择题

中央电视台《焦点访谈》解读“十二五”规划建议指出,生产资料公有制是社会主义经济制度的基础,必须坚持公有制的主体地位。关于公有制主体地位的理解,错误的是()

A、公有资产在社会总资产中占优势

B、国有经济控制国民经济命脉

C、国有经济对经济发展起主导作用

D、公有制企业在数量上和质量上占优势

答案

参考答案:D

解析:公有制主体地位的体现:公有资产在社会总资产中占优势,这是就全国而言,有的地方、有的产业可以有所差别;国有经济控制国民经济命脉,起主导作用,国有经济的主导作用主要体现在控制力上,即体现在控制国民经济的发展方向、控制运行的态势、控制重要稀缺资源的能力上。在关系国民经济命脉的重要行业和关键领域,国有经济必须占支配地位。A、B、C是正确的;D是错误的,适合题意。

填空题

(9分)某制碱厂以海水为主要原料生产纯碱(碳酸钠)和其他副产品。

(一)将海水进行处理后获得精盐水。海水中,除氯化钠外,还含有氯化镁、氯化钙、硫酸钠等杂质。其处理的主要流程如下:

(1)加入氢氧化钠溶液的目的是                                 

(2)操作Ⅰ所得的沉淀是混合物,其成分有(至少写两种):           

(3)向滤液中滴加稀盐酸目的是                  

(二)将精盐水制成饱和溶液,先向其中通入足量的氨气,再向其中通入足量的二氧化碳至有大量晶体(碳酸氢钠,NaHCO3)析出;将晶体转移出来后,加热至不再有气体产生,所得固体即为纯碱。

(4)制碱过程中获得的副产品可做化肥,其化学式为             

组成确定

(5)①称取一定质量的纯碱样品,经多次充分加热后,再称重,质量无变化;② 另取少量纯碱样品加入适量水,样品完全溶解,向该溶液中加入过量稀HNO3,再滴加AgNO3溶液,有白色沉淀。由上述实验可确定纯碱样品含有杂质         (写化学式)。

含量测定

(6)称取纯碱样品21.5g,加入到盛有足量稀盐酸的烧杯中,并不断用玻璃棒搅拌。反应过程用精密仪器测得烧杯内混合物的质量(m)与反应时间(t)关系如图所示。请通过计算并结合右表判断此纯碱样品等级为          品。

计算过程:   

总结反思

(7)某同学认为,在上述纯碱含量测定过程中,用玻璃棒不断搅拌,能使测定误差会减小,其理由是                                  

单项选择题

In 1930, W. K. Kellogg made what he thought was a sensible decision, grounded in the best economic, social and management theories of the time. Workers at his cereal plant in Battle Greek, Mich. were told to go home two hours earlier, every day for good.
The Depression-era move was hailed in Factory and Industrial Management magazine as the "biggest piece of industrial news since Henry Ford announced his five-dollar-a-day policy." It’s believed that industry and machines would lead to workers’ paradises where all would have less work, more free time, and yet still produce enough to meet their needs.
So what happened Today, instead of working less, our hours have stayed steady or risen- and today many more women work so that families can afford the trappings of suburbia. In effect, workers chose the path of consumption over leisure.
With unemployment at a nine-year high and many workers worded about losing their jobs- or forced to accept cutbacks in pay and benefits -- work is hardly the paradise economists once envisioned.
The modern environment would seem alien to pre-industrial laborers. For centuries, the household -- from farms to "cottage" craftsmen -- was the unit of production. The whole family was part of the enterprise, be it farming, blacksmithing, or baking. "In pre-industrial society, work and family were practically the same thing," says Gillis.
The Industrial Revolution changed all that. Mills and massive iron smelters required ample labor and constant attendance. For the first time, work and family were split. Instead of selling what they produced, workers sold their time. With more people leaving farms to move to cities and factories, labor became a commodity and placed on the market like any other.
Innovation gave rise to an industrial process based on machinery and mass production. The theories of Frederick Taylor, a Philadelphia factory foreman, led to work being broken down into component parts, with each step timed to coldly quantify jobs that skilled craftsmen had worked a lifetime to learn. Workers resented Taylor and his stopwatch, complaining that his focus on process stripped their jobs of creativity and pride, making them irritable. Long before anyone knew what "stress" was, Taylor brought it to the workplace- and without sympathy.
The division of work into components that could be measured and easily taught reached its apex in Ford’s River Rouge Plant in Dearborn, Mich., where the assembly line came of age. To maximize the production lines, businesses needed long hours from their workers. But it was no easy to sell.
Labor leaders fought back with their own propaganda. For more than a century, a key struggle for the labor movement was reducing the amount of time workers had to spend on the job.
Between 1830 and 1930, work hours were cut nearly in half, with economist John Maynard Keynes famously predicting in 1930 that by 2030 a 15-hour workweek would be standard. While work had once been a means to serve God, two centuries of choices and industrialization had turned work into an end in itself, stripped of the spiritual meaning that sustained the Puritans who came ready to tame the wilderness.
By the end of the 1970s, companies were reaching out to spiritually drained workers by offering more engagement while withdrawing the promise of a job for life, as the American economy faced a stiff challenge from cheaper workers abroad. By the 1990s, technology made working from home possible for a growing number of people. Seen as a boon at first, telecommuting and the rapidly proliferating "electronic leash" of cell phones made work inescapable, as employees found themselves on call 24/7. Today, almost half of American workers use computers, cell phones, E-mail, and faxes for work during what is supposed to be nonwork time. Home is no longer a refuge but a cozier extension of the office.
When the stock market bubble burst and the economy fell into its recent recession, workers were forced to re-evaluate their priorities. They want a better quality of life; they’re asking for more flextime to spend with their families.
But there’s still the question of fulfillment. A recent study shows that work doesn’t satisfy workers’ deeper needs. "We expect more and more out of our jobs," says Hunnicutt. "We expect to find wonderful people and experience all around us."

What’s the workers’ reaction to Taylor’s innovation

A.Workers complained they could not create because of the innovation.

B.Workers complained that Taylor carried out his policy without sympathy.

C.Workers complained that Taylor should tell them the "stress" resulted from the innovation.

D.Workers complained that Taylor’s focus on process stripped their jobs of creativity and pride.