• 2015广东学优网高考试题库试题及答案-云返教育

    • (1)已知函数y=f(x)在[0,+∞)上是减函数,试比较f(
      3
      4
      )与f(a2-a+1)的大小;
      (2)已知函y=f(x)是定义在(0,+∞)上的减函数,若f(a+1)<f(1-4a)成立,求a的取值范围.
      答案解析
      类型: 单选题     难度系数:
    • (2009.南昌测验)2008年9月25日至28日,我国神舟七号栽人航天飞行取得圆满成功。其间,中国航天员顺利完成首次空间出舱任务,中华民族漫步太空的梦想终成现实。据此回答2-3题。
      2.9月27日,中国航天员翟志刚身着中国自主研制的“飞天”舱外航天服在舱外活动了约20分钟,回收了在舱外装载的试验样品装置。在这里航天员所进行的活动属于

      A.生产实践 B.科学实验
      C.处理社会关系的实践 D.改造自然的实践
      3.中国航天员首次空间出舱活动取得成功,将使中国突破和掌握出舱活动相关技术,这就意味着中国朝着建设太空实验室或空问站的目标又迈进了一大步。我国神舟七号载人航天飞行取得圆满成功,这有利于
       
      ①获得太空制空权,维护国家的统一 ②提升我国的综合国力和科技水平
      ③垄断太空资源,造福整个人类 ④振奋民族精神,增强民族自豪感和凝聚力
      A.①②④ B.②③④ C.①③ D.②④
      答案解析
      类型: 解答题     难度系数:
    • 随着农村养老保险工作的展开,农民在“种地不交税、上学不付费、看病不太贵”后,又实现了“养老不犯愁”。这些民心工程集中体现了中国共产党
      答案解析
      类型: 单选题     难度系数:
    • (2013?通州区二模)如图所示为一显示薄膜干涉及现象的实验装置,P是附有肥皂膜的铁丝圈,S是一点燃的酒精灯.往火焰上洒些盐后,在肥皂膜上观察到干涉图象应是图中的(  )
      答案解析
      类型: 单选题     难度系数:
    • 可将化合物中的金属元素还原为金属单质的方法是(  )
      答案解析
      类型: 单选题     难度系数:
    • (1)已知函数y=f(x)在[0,+∞)上是减函数,试比较f(
      3
      4
      )与f(a2-a+1)的大小;
      (2)已知函y=f(x)是定义在(0,+∞)上的减函数,若f(a+1)<f(1-4a)成立,求a的取值范围.
      答案解析
      类型: 解答题     难度系数:
    • 诗句“满眼风波多闪烁,看山恰似走来迎,仔细看山山不动,是船行”中,“看山恰似走来迎”和“是船行”所选的参考系分别是………………………………………
      A.船和山 B.山和船 C.地面和山 D.河岸和流水
      答案解析
      类型: 解答题     难度系数:
    • 25℃、101 kPa下,碳、氢气、甲烷和葡萄糖的燃烧热依次是393.5 kJ/mol、285.8 kJ/mol、890.3 kJ/mol、2800 kJ/mol,则下列热化学方程式正确的是         
      答案解析
      类型: 单选题     难度系数:
    • 把下列单词填入每个句子的空白处(注意所填单词的形式变化):
      hero quality willing active republic principle fight prison period advise continue youth league stage vote position accept violence peaceful blanket degree guard educated terror fear cruelty reward criminal president sincerely
      1 The Society for the Prevention of _________ to Animals (SPCA 动物保护协会) is a well known organization in the world.
      2 The girl wrapped herself with a _________ to keep herself warm.
      3 The famous actress first appeared on the _________ only in her teens.
      4 The two boys who were _________ in the playground were ordered to stop.
      5 People regarded him as a ________, for he saved a drowning 8-year-old boy out of a freezing lake.
      6 You really deserve a _________ for being so helpful.
      7 My uncle received a doctor’s _________of medicine in America in 1998 and returned to China the following year.
      8 He obtained 89% of the __________ and was elected president of the Party.
      9 Nelson Mandela was put in ________ a few times.
      10 People often value the _________ of a product rather than its packaging.
      11 The _________ was charged with robbing a bank and sentenced to death.
      12 Two soliders _________ the government office building all the time.
      13 My father was promoted to a higher _________ for his achievements.
      14 I stayed in Japan for only a short _________ of time.
      15 Those boys are so helpful that they are always ________ to help others.
      16 George Bush was elected _________ of the USA a second time in 2004.
      17 All my family are well _________, of whom my brother studied in Harvard University.
      18 I am a Party member and never ________any bribe(贿赂) from others.
      19 The doctor _________ me to take more exercise so that I can keep fit.
      20 Some students are very ________ in answering teachers’ questions while others just keep silent when asked any question.
      21 I _________ hope that you won’t let me down.
      22 To his ________, he found a figure coming towards him in the darkness.
      23 What really worries those parents is that there is too much sex and _______ on TV.
      24 The rain ________ falling all afternoon. But it came to a stop by dark.
      25 PRC is short for the People’s _________ of China.
      26 His son has been missing for five days and now police are beginning to _______ the worst.
      27 After retirement she moved to the country and lived a ________ life.
      28 The _________ play an important role in building our country.
      29 I have been a ________ member for 3 years.
      30 Stick to your ________ and tell him that you won’t do it.
      答案解析
      类型: 其他题型     难度系数:

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