题目内容
List the main types of markersto indicate the relation between sentence components in English.
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Translate the sentence into Chinese.He boasts that a slave is free the moment his feet touches the British soil and he sells the children of the poor at 6 years of age to work under the slash in the factories for 16 hours a day.
空间任意力系最多有6个独立的平衡方程
建立任意力系平衡方程时，直角坐标系的选择无任何限制
统编高中语文教材必修每册包括多少个单元
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