符合如图漫画《在线算命》寓意的是（    ）

假定英语课上英语老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（∧），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限一词。

      2).只允许修改10处，多者（从第11处起）不计分。

    I was in the college when my father passed away. One evening, a man visited me and after a while, he asked of my studies. I told him I could not go to college so I did not want to study anymore. He reminded how my father had sent me to the best college in our city. Did I want to fulfill his father's dream or did I want to be calling a failure? I wept and said I do want to do my best and I just couldn't concentrate. He gave me all the encouragements I needed to be able to carry on. His calming, gently voice did wonders and I decided to study harder and complete my graduation early.

如图，AB是⊙O的直径，⊙O的半径$\sqrt{3}$cm，弦CD⊥AB于E，∠CDB=30°，则弦CD的长为（　　）

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修改病句。

①这本故事书对我很感兴趣。

②学校开会通过并讨论了他的建议。

（1）条形磁铁磁性减弱了，小红采用如图1所示的方法增强它的磁性，请你在图中标出电源的“+”、“﹣”极和小磁针的N极．

（2）如图2所示，S₁是光控开关，夜晚自动闭合，白天断开；S₂是声控开关，有声音时自动闭合，安静时断开．请把图连接成声光控楼道节能照明电路．