阅读下文，回答问题露珠赞
    我喜欢露珠，我赞美它。
    夏日的清晨，我来到野外散步。在万道霞光中，一个美妙的、崭新的世界便（显出  呈现  出现）在我眼前。看！那无边的绿叶上，闪动着无数颗晶莹的露珠，一颗、两颗、十颗……啊！像夜空中璀璨的繁星，像碧波上撒满了宝石，又像千百万闪光的眼睛。啊！露珠！这就是极普通而又为人们所喜爱的露珠。
    露珠的身体很小，生命也很短暂，但它却是不平凡的。当夜幕笼罩的时候，它像慈母用乳汁（教育  哺育  培育）婴儿一样地滋润着禾苗；每当黎明到来的时候，它又最早睁开那不知疲倦的眼睛；它白天隐身于空气中，夜晚无声辛勤工作。它不像暴雨那样挟风裹电以（夸耀  显耀  炫耀）它的威力，不像冰雹那样对一切（残酷  残忍  残暴）无情。它把短暂的一生献给树木、庄稼……而对它们却无所苛求。它多么像辛勤的园丁，培育花朵；多么像我们敬爱的老师，伏在桌边灯下夜以继日地工作，把全部心血洒在我们心田……
        我爱露珠，它比珍珠更珍贵，比宝石更晶莹，比群星更璀璨。我赞美它。露珠精神将永远在我心头闪动。

根据录音，选出正确的图片（  ）

已知函数$f\left(x\right)=\left\{\begin{array}{c}x+\frac{1}{2},x\in 0,\frac{1}{2})\\ 3x^2,x\in \frac{1}{2},1\end{array}\right.$，若存在$x_1<x_2$，使得$f\left(x_1\right)=f\left(x_2\right)$，则$x_1·f\left(x_2\right)$的取值范围为(  )

奥巴马上任以来对美国经济发展和就业中出现的问题，他认为是共和党执政时期“放手不管”的治理理念把美国带入衰退；共和党则认为是奥巴马政府提高税赋、监管繁苛，扰乱了企业雇主的规划。此类问题上具体主张的差异，实质上看

阅读下面短文，在空白处填入一个适当的词，或填入括号中所给单词的正确形式。

    Do you have any idea of New Year paintings? Also ____(know) as "paper paintings" and "painted pictures", New Year paintings are a unique art form in Chinese folk culture. Without New Year paintings, our traditional Chinese folk culture ____(be) much less colorful. The paintings get such a name because they are ____(most) posted during the Chinese New Year holiday for decoration and they are also accepted ____ a symbol of New Year's greetings.

    New Year paintings ____(appear) around the Tang dynasty, replacing the previous door pictures believed to be able to protect the residents and drive away ghosts. The New Year paintings ____(belong) to the Song dynasty were created on a large scale. With the advancement of printing technology, the content and forms of New Year paintings became ____(vary). The development of the paintings matured in the Ming and Qing dynasties, ____ the art hit its heyday(全盛期).

    Traditional printing ____(method) of New Year paintings include woodblock printing, stone-block printing, offset(胶印) printing, traditional Chinese painting, watercolor painting and sketches etc. Woodblock-printed New Year paintings are the most popular and interesting ____, according to a recent survey.