在 -3，－$\sqrt{3}$， －1， 0 这四个实数中，最大的是（   ）  

“臣心一片磁针石，不指南方不肯休”，表达了文天祥强烈的爱国精神．地磁场的____极在地球的南极附近，诗句中指向南方的应是磁针石的____极．

第二届世界互联网大会2015年12月16日上午在浙江乌镇开幕。***主席主旨演讲提出的五点主张引发热烈反响——携手共建网络空间命运共同体。

材料一：网络空间是人类共同的活动空间，网络空间前途命运应由世界各国共同掌握。各国应该加强沟通、扩大共识、深化合作，共同构建网络空间命运共同体。***主席针对共建网络空间命运共同体提出“中国方案”的五点主张：加快全球网络基础设施建设，促进互联互通；打造网上文化交流共享平台，促进交流互鉴；推动网络经济创新发展，促进共同繁荣；保障网络安全，促进有序发展；构建互联网治理体系，促进公平正义。

材料二：上述主张立足不同国家、地区、人群间信息鸿沟的客观现实，顺应人们对互联网安全与发展的强烈诉求;尊重世界各民族文化自身的发展状况并倡导各民族文化的交流;锁定智能互联带给人类的空前发展机遇，直面网络犯罪、网络攻击、网络谣言等网络空间问题。 

    Do you know the song My future isn't a dream?I love the song____it brings me confidence(信心)。 I think that all of our dreams can come true if we work hard____them.

    When I was young, my father always____me what I would be in the future. Sometimes I found it very hard to give ____right answer. “I want to be a doctor.” “I hope to be a____(science)”. Some of these answers sound like____(joke), but I never think they are ____(meaning).

    I know clearly that those high buildings have solid foundations(坚实的地基). As a student, I should have a clear goal to work hard from now.

    Now my goal is to go to the____(good) university in China after high school. I know it's hard, and I'll____(meet) many problems. But no matter how difficult it is, I'll keep on____(work) on it and never give up.