文中共有10处语言错误，每句中最多有两处。错误涉及—个单词的增加、删除或修改。增加：在缺词处加—个漏字符号(/\)，并在其下面写出该加的词。 删除：把多余的词用斜线(\)划掉。修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1每处错误及其修改均仅限一词；2只允许修改10处，多者(从第11处起)不记分。
Helen Keller was one of the greatest woman in the 20th century. She was born in America in the June, 1880. When she was nineteen months old, she becomes blind and deaf because a serious illness. From then on she lived in darkness and silence. Her parents were great worried. When she was seven, they found a teacher for her. With Helen's strong will and intelligences, combined with his teacher's skill and patience, they succeeded. Helen Keller graduated from a college and got a degree. Late on she devoted all herself to help the blind and deaf children. She wrote many books but The Story of My Life was a remarkable one.
的细绝缘线，上端固定，下端系一个质量为m的带电小球，将整个装置放入一匀强电场，电场强度大小为E，方向水平向右，已知：当细线偏离竖直方向为θ＝370时，小球处于平衡状态，（sin370=0.6）试求：