那麝香有多少种？
最普及的二甲苯麝香最便宜。[{'character': '最', 'pinyin': 'zuei4', 'highest pitch': 11.21, 'lowest pitch': 9.74, 'duration': 0.27, 'prosody hierarchy': '#2'}, {'character': '普', 'pinyin': 'pu3', 'highest pitch': 8.47, 'lowest pitch': 6.2, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '及', 'pinyin': 'ji2', 'highest pitch': 7.7, 'lowest pitch': 6.2, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 8.49, 'lowest pitch': 7.39, 'duration': 0.21, 'prosody hierarchy': '#2'}, {'character': '二', 'pinyin': 'er4', 'highest pitch': 9.97, 'lowest pitch': 7.55, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '甲', 'pinyin': 'jia2', 'highest pitch': 9.94, 'lowest pitch': 7.12, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '苯', 'pinyin': 'ben3', 'highest pitch': 7.26, 'lowest pitch': 5.25, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '麝', 'pinyin': 'she4', 'highest pitch': 8.69, 'lowest pitch': 5.3, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '香', 'pinyin': 'xiang1', 'highest pitch': 9.92, 'lowest pitch': 9.55, 'duration': 0.24, 'prosody hierarchy': '#1'}, {'character': '最', 'pinyin': 'zuei4', 'highest pitch': 11.21, 'lowest pitch': 7.9, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '便', 'pinyin': 'pian2', 'highest pitch': 7.46, 'lowest pitch': 4.8, 'duration': 0.3, 'prosody hierarchy': 'null'}, {'character': '宜', 'pinyin': 'i5', 'highest pitch': 11.94, 'lowest pitch': 6.55, 'duration': 0.21, 'prosody hierarchy': '#4'}]