戊戌变法期间，湖南《湘报》发表了《醒世歌》：“若把地球来参详，中国并不在中央，地球本是浑圆物，谁是中央谁四旁。”这首诗歌所表达的主要思想是(  )。

    My name is Mary. I am seven. Ted is my brother (兄弟). He's twelve. We are in the same (相同的) school. My mother is a teacher. She teaches (教) English. She is a teacher in our school. My father is a doctor (医生). He works (工作) in a big hospital (医院). I have a dog. Its (它的) name is Bell (贝尔). We are good friends.

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