电子与质子的电荷基本（），符号（）。

书面表达

      请根据以下提示,结合你在生活中的事例,就"Nothing Succeeds Without a Strong Will" 为题用英语写一篇短文,谈谈毅力对于成功的重要性.

     It is universally acknowledged that people cannot succeed or achieve their targets with-out a strong will and persistence．No one can deny the fact that persistence is the key point in accomplishing one' s task.

Strong will is a kind of good quality which successful people should own．

     注意:1. 不得照抄英语提示语,.

              2. 除诗歌外,文体不限.

              3. 内容必须结合生活中的一个事例.

              4. 文中不得透露个人姓名和学校名称.

              5. 词数为120左右.

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