科学家通过大量地努力，终于摸清了野生东北虎的数量。这项活动主要采用的方法是(  )

为纪念世界反法西斯战争胜利70周年，中国政府将隆重举行纪念活动，意在唤起每一个善良的人对和平的向往和坚守，避免历史悲剧重演，共同捍卫二战胜利果实，开创人类更加美好的未来。这表明（  ）

①社会意识具有相对的稳定性和相对独立性

②新事物战胜旧事物是社会发展的必然途径

③正确的价值选择必须坚持真理，走历史必由之路

④人民群众是历史的创造者，是社会存在和发展的基础

  Karl was at home with his brother Michael and his sister Addy．As he ____(推)the window open, he saw a big panda in the backyard．He ____(大喊)to Michael．Michael ____(回答)that pandas should be in the ____(森林)．Then they went out, the panda was already there talking to Addy．The panda said he was sorry that he flew here with his umbrella ____(没有)____(敲门)on the____(门)．The next day, Addy walked____(往)the panda's house with a gift．In ____(返回), the panda told Addy a story  ____(在……上面)a tree．And the panda also told Karl another story after they played games．That's the story in the book Zen Shorts．