80后村医用16年兑现那句“24小时上门服务”的承诺，他没有拒绝过一次出诊，风里雨里，随叫随到。“中国网事。感动2016”年度网络人物贺星龙用实际行动诠释了（    ）

    Mr. White lives in the countryside with his wife, Mrs. White. From Monday to Friday he works in a small office near his house. He is free on Saturdays and Sundays. He has a nice garden near his house. He likes growing flowers and he usually works in the garden on Saturdays and Sundays. The flowers are colourful and beautiful. Mrs. White likes them very much. She often helps Mr. White. They live happily together.

初二（3）班的历史兴趣小组准备对一个历史课题进行研究，他们搜集了以下一些历史资料：①林则徐生平史迹  ②英国军队侵华暴行  ③割让香港岛示意图。根据这些历史资料，他们研究的课题应该是关于（   ）        

观察下列在中国出土的唐代文物——货币，这些出土文物说明了（    ）