唐代诗人陆龟蒙的诗句：“天问复招魂，无因彻帝阍。岂知千丽句，不敌一谗言。”请问这是诗人在感叹谁的遭遇？
参考答案：是诗人在感叹屈原的遭遇。
In English culture, there are four interpersonal distance zones: the intimate zone, the casual-personal zone, the socio-consultative zone and the public zone. Please decide which zone matches with each of the following situations: (1) conversations with relatives;(2)business discussion; (3) public lectures; (4) staying with spouses and kids
（）将一段时期内的证券价格平均值连成曲线，用来显示证券价格的历史波动情况，进而反映证券价格指数未来发展趋势的技术分析方法。
A.移动平均线
B.趋势线
C.K线
D.反弹线
