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Those who believe that they will never do well in a particular area probably never will. Those who believe they are not good at1will forever feel unprepared. But those who believe that it is2to succeed at what they attempt can surprise themselves.
Adam was ready to3.His wife Anna, however, was less4.As she explained to a friend, "Adam has5done anything that required physical strength. When he retires, he will sit in his easy chair and6me to bring him his food.”
But to Anna's7, soon after her husband retired, he8a health club. Arriving home from exercise class one night, he announced, "I9for the wrestling tournament. I am going to10Friday night.”Anna was shocked. "Please don't do it, Adam. You're not in11.You will be so beat up that they will have to carry you home!”12,he couldn't be persuaded and she told him that if he wanted really to do it, she was not going to watch.
13to her word, she stayed away as Adam wrestled. And just as she14, two men carried Adam home. He15down on the bed, every muscle pained and wounded.16she could speak, he cried out," Don't say a(n)17, Anna! This is not the worst of it. I18tonight. I have to wrestle again tomorrow night!”
Nothing 19in your life until you believe you can do things that are important to you. And if you have a low20of yourself, nobody else is likely to raise it.
10.6 g Na2CO3溶于水配制成500 mL 溶液，从中取出20 mL，该溶液中Na＋的物质的量浓度为