传承文化薪火　滋养文化基因

材料一某校思想品德教师为弘杨中华民族传统美德，落实优秀传统文化进课堂，带领学生开展“传承优稚如瓷的文化基因”主题阅读活动，让大家推荐自己喜欢的传统经典作品。

材料二为传承中华文明的薪火　滋养民族文化的基因，某学校组织了以下系列活动。

下列各句中，没有语病的一句是（   ）

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1. 在磁体的周围有着一种我们看不见的特殊物质，叫做 ____。磁场对放入其中的磁性物体产生 ____的作用．磁感线是为了形象地描述磁场而引人的理想模型，在客观上 ____。磁感线上，任何一点的 ____方向表示该点磁场的方向，曲线分布的密疏程度表示磁场的 ____。磁场越强的地方，磁感线分布越 ____；磁场越弱的地方，磁感线分布越 ____。