题干

改革开放以来,我国进行了经济体制改革,形成了____的基本经济制度,让一切创造财富的源泉充分涌流。(    )

A:按资分配为主体、多种生产要素参与分配

B:公有制为主体、多种所有制经济共同发展

C:公有制为主体、多种分配方式并存

D:按劳分配为主体、多种分配方式并存

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答案(点此获取答案解析)

B

同类题3

      阅读下文,回答相关问题

                                                                                    黄岩岛——神圣的领土
      ①最近一段时间,菲律宾频频制造事端侵犯我国领土主权,黄岩岛成为中外媒体关注的热点之一,孰不知黄岩岛历来就是中国不可分割的领土。
      ②黄岩岛,又名民主礁,是 我国中沙群岛的组成部分。位于东经118°以西,与菲律宾隔海相望,是我国东南沿海渔民的传统渔场。从地质构造上看,黄岩岛是中国大陆架的自然延伸。而不是一个游离的海岛。
      ③大量的历史资料表明,黄岩岛自古就是中国的领土,中国最早发现了黄岩岛,1279年,元世祖忽必烈派天文学家郭守敬进行“四海测验”,据考证,郭守敬在在南海的测量点就是黄岩岛。所以早在13、14世纪中国元朝时,历史文献已显示黄岩岛是中国领土垢一部分。
      ④黄岩岛是我国的领土,其法律地位早已确定。1935年以来,中国公开出版的地图、教科书均标明黄岩岛为中国领土。另外,国中历届政府分别于1935、1947和1983年三次正式公布对此岛的命名或名称更改。中国对黄岩岛拥有主权早已得到国际社会的变遍承认。
      ⑤黄岩岛海域资源丰富。同南沙群岛一样,黄岩岛海域不仅是重要的海上通道,具有重要地战备地位,而且水产资源十分丰富。这里盛产经济价值较高的物产有:金枪鱼、红鱼、章鱼、梅花参及各种贝类产品,特别是珊瑚种类繁多、经济价值很高。以至,东南亚各国对她垂涎三尺。
      ⑥黄岩岛,对于我国神圣领土的完整性,其重要性不言而喻。如果西沙的扼守南中国海的一道防线的话,那么黄岩岛就是这道防线的前哨。

同类题5

根据短文内容的理解,选择正确答案。

    We produce 500 billion of plastic bags in a year worldwide and they are thrown away polluting oceans, killing wildlife and getting dumped in landfills where they take up to 1,000 years to decompose. Researchers have been unsuccessfully looking for a solution.

    The 16-year-old Canadian high school student, Daniel Burd, from Waterloo Collegiate Institute, has discovered a way to make plastic bags degrade(降解) in as few as 3 months, a finding that won him first prize at the Canada Wide Science Fair, a $10,000 prize, a $20,000 scholarship, and a chance to revolutionize a major environmental issue.

    Burd's strategy was simple: Since plastic does eventually degrade, it must be eaten by microorganisms(微生物).If those microorganisms could be identified, we could put them to work eating the plastic much faster than under normal conditions.

    With this goal in mind, he grounded plastic bags into a powder and concocted(调制) a solution of household chemicals, yeast(酵母) and tap water to encourage microbes growth.Then he added the plastic powder and let the microbes work their magic for 3 months.Finally, he tested the resulting bacterial culture on plastic bags, exposing one plastic sample to dead bacteria as a control.Sure enough, the plastic exposed(暴露) to the live bacteria was 17% lighter than the control after six weeks.

    The inputs are cheap, maintaining the required temperature takes little energy because microbes produce heat as they work, and the only outputs are water and tiny levels of carbon dioxide.

    "Almost every week I have to do chores and when I open the closet door, I have piles of plastic bags falling on top of me.One day, I got tired of it and I wanted to know what other people are doing with these plastic bags.The answer: not much.So I decided to do something myself." Said Daniel Burd.