中国每年制作高达26万分钟的动画作品，真正优秀的却风毛麟角。上海今日动画公司跳出“拿着作品找市场”的思维定势，凭着“先卖创意，再卖产品”的理念，通过制作《中华小子》的两分半钟动画样片，“俘获”全球片商的眼球，并收获了数千万元的预售合同。该公司成功的经验是（  ）

①在与传统营销模式绝对不相容的对立中实现思维创新

②在辩证否定的过程中实现了理念和实践的创新与发展

③在批判性思维的指引下找到了企业经营发展的新思路

④在先否定传统、继而创新理念的实践中实现自身的发展

俄罗斯地跨亚欧两洲，但历来被公认为欧洲国家，下列理由中不正确的是（　　）

    With air pollution making much difference to many of Chinese cities, parents are calling for the installation(安装) of air cleaners in classrooms. There has been much debate over whether air cleaners should be used in China's schools. Some parents have donated cleaners to their children's classrooms, while others raise money together to make the purchase(购买). “Our school bought air cleaners last year. We did a little fund raising, with each parent throwing in several hundred for that,” said one parent.

    However, the idea of installing air cleaners for all the classes has been refused by some schools. Liu Liangcheng, vice-principal of Beijing's Taipinglu Primary School, says installing air cleaners bought by parents may lead to problems. “We have refused air cleaners bought by parents before, as there are clear and strict rules against educational fees. We can't just break the rules here. And without standard guidance (指示) from local authorities(权威部门), it is hard to decide on the brand of the cleaner, installation and even safety of the device(设备).”

    Moreover, experts say air cleaners can cause other health problems. Deng Gaofeng who works for the China Academy of Building Research says. “ In the classroom, if we keep windows and doors closed, the concentrations (浓度) of CO₂ will double from 1,000 PPM to some 2,000 PPM. According to national safety standards, the highest level should not be more than 1,500.” In addition, experts say air cleaners on the market are mostly designed for homes or offices. Evaluation(评估) is needed to know whether they are suitable in classrooms.

    It seems whether air cleaners should enter China's schools is an ongoing question. It still requires a more detailed plan.

阅读以上信息，用恰当的单词完成下面的表格，每空一词。

Topic : Should air cleaners be installed for students in school?