Success never comes easy. How many of you have heard of successful people who haven't made any effort? People often have to overcome failures ____ they can accomplish something great. They usually don't find success from the very beginning.

    Van Gogh sold only one painting during his lifetime, but this didn't stop him from completing over 800 painting. Thomas Edison ____(fire) from his first two jobs for lack of competence. Later, as an inventor, he tried 1,000 times ____ (create) the light bulb, without success. He was confident in ____ (he), and____ (eventual) he did success. When____ (ask), “How did it feel to fail 1,000 times?” Edison replied, “I didn't fail 1,000 times. The light bulb was ____ invention with 1,000 steps.

    These successful people have set good____ (example) to us. They wouldn't have achieved their success if they____ (abandon)their dreams. Believe in yourself and try your best, and success will not be far ____ you.

我们不仅要把社会财富这个“蛋糕”做大，也要把“蛋糕”分好。把社会财富这个“蛋糕”分好，我们必须（    ）

①坚持以经济建设为中心，大力发展生产力                                    ②坚持按劳分配为主体，多种分配方式并存的分配制度

③坚持公有制为主体，多种所有制共同发展的基本经济制度        ④确立劳动、资本、技术、管理等生产要素按贡献参与分配的制度

据某学者回忆，***在1952年指示，“中国历史很长，建议在中科院设立三个研究所，把中国史分为三段来研究，第一所研究古代，止于汉；第二所研究魏晋到鸦片战争前；第三所研究鸦片战争以来的近代史……办一个杂志，定名为《历史研究》，方针是‘百家争鸣’”。该指示（ ）