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在日常生活中，打电话是极平常的亊。可是你知道电话是怎样发明出来的吗？英国的格雷欧姆·贝尔，在发明电话的过程中，以顽强的毅力，攻克了道道难关，冲破了重重阻力，为人类科学文化的发展, 做出了重大贡献。读完这本连环画册，你会被这位发明家不屈不挠、锲而不舍的精神感动，并从中得到有益的启示。
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