“为什么要研究党史？”
研究党史，就是想从走过的路总结经验教训。[{'character': '研', 'pinyin': 'ian2', 'highest pitch': 9.3, 'lowest pitch': 7.83, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '究', 'pinyin': 'jiou1', 'highest pitch': 10.87, 'lowest pitch': 9.28, 'duration': 0.22, 'prosody hierarchy': '#1'}, {'character': '党', 'pinyin': 'dang2', 'highest pitch': 10.92, 'lowest pitch': 7.59, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '史', 'pinyin': 'shiii3', 'highest pitch': 10.73, 'lowest pitch': 3.07, 'duration': 0.32, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.16}, {'character': '就', 'pinyin': 'jiou4', 'highest pitch': 8.54, 'lowest pitch': 7.42, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '是', 'pinyin': 'shiii4', 'highest pitch': 7.91, 'lowest pitch': 7.42, 'duration': 0.13, 'prosody hierarchy': '#1'}, {'character': '想', 'pinyin': 'xiang3', 'highest pitch': 7.49, 'lowest pitch': 5.01, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '从', 'pinyin': 'cong2', 'highest pitch': 8.97, 'lowest pitch': 5.81, 'duration': 0.25, 'prosody hierarchy': '#1'}, {'character': '走', 'pinyin': 'zou3', 'highest pitch': 8.97, 'lowest pitch': 4.98, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '过', 'pinyin': 'guo4', 'highest pitch': 10.78, 'lowest pitch': 5.84, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 9.87, 'lowest pitch': 8.34, 'duration': 0.11, 'prosody hierarchy': 'null'}, {'character': '路', 'pinyin': 'lu4', 'highest pitch': 8.62, 'lowest pitch': 7.46, 'duration': 0.27, 'prosody hierarchy': '#3'}, {'character': '总', 'pinyin': 'zong3', 'highest pitch': 7.78, 'lowest pitch': 5.49, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '结', 'pinyin': 'jie2', 'highest pitch': 6.5, 'lowest pitch': 5.7, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '经', 'pinyin': 'jing1', 'highest pitch': 8.71, 'lowest pitch': 6.5, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '验', 'pinyin': 'ian4', 'highest pitch': 8.85, 'lowest pitch': 7.91, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '教', 'pinyin': 'jiao4', 'highest pitch': 9.76, 'lowest pitch': 7.91, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '训', 'pinyin': 'xvn4', 'highest pitch': 7.97, 'lowest pitch': 5.76, 'duration': 0.27, 'prosody hierarchy': '#4'}]