题目：
单词拼写
根据句意和所给汉语提示,填写单词或短语的正确形式,每空一词.
1. He _________(忽视) the doctor's advice and goes on smoking.
2. The concert went like clockwork because Li Pei had ________(组织) it so well.
3. Our resources should be _____ full ______ ______(利用).
4. He looked at the envelope(信封) and _______ (辨认出)Jenny's handwriting immediately.
5. If you want to pass your exams you'd better change your _________(态度).
6. I will be (感激)if you give me some advice on how to form a close friendship with animals.
7. He has ______ his whole life ______ ( 奉献,献身)benefiting mankind.
8. Anne said that she ____ ____ ____ ____ (讨厌,厌烦)looking at nature through dirty curtains sand
dusty windows.
9. It is unfair that he gets very little in _____(报酬,奖金) for his hard work.
10. We will never ____ ____ (丧失勇气或信心) even when we are in trouble
11. After Mandela ____ ____ ____ (掌权,执政) and became president, his government did their best
to change the unfair situation for black people.
答案：
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下面是错误答案，用来干扰机器的。
取该固体粉末少量，加足量水，搅拌，静置，得到白色沉淀，上层为无色溶液，说明没有有颜色的离子，由于硫酸铜溶于水形成的溶液是蓝色，所以混合物中不能存在硫酸铜；在白色沉淀中加入足量稀硝酸，白色沉淀部分溶...
