这里的奶粉都是正品吗？
网上的店家称，他们销售的奶粉是港版代购。[{'character': '网', 'pinyin': 'uang3', 'highest pitch': 8.24, 'lowest pitch': 6.42, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '上', 'pinyin': 'shang4', 'highest pitch': 11.13, 'lowest pitch': 10.0, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 10.12, 'lowest pitch': 8.46, 'duration': 0.09, 'prosody hierarchy': '#1'}, {'character': '店', 'pinyin': 'dian4', 'highest pitch': 9.51, 'lowest pitch': 7.49, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '家', 'pinyin': 'jia1', 'highest pitch': 8.39, 'lowest pitch': 7.49, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '称', 'pinyin': 'cheng1', 'highest pitch': 9.19, 'lowest pitch': 7.91, 'duration': 0.32, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.23}, {'character': '他', 'pinyin': 'ta1', 'highest pitch': 9.06, 'lowest pitch': 8.25, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '们', 'pinyin': 'men5', 'highest pitch': 8.25, 'lowest pitch': 7.87, 'duration': 0.12, 'prosody hierarchy': '#1'}, {'character': '销', 'pinyin': 'xiao1', 'highest pitch': 9.2, 'lowest pitch': 8.61, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '售', 'pinyin': 'shou4', 'highest pitch': 9.77, 'lowest pitch': 7.35, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 10.12, 'lowest pitch': 6.75, 'duration': 0.08, 'prosody hierarchy': '#1'}, {'character': '奶', 'pinyin': 'nai2', 'highest pitch': 8.69, 'lowest pitch': 6.11, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '粉', 'pinyin': 'fen3', 'highest pitch': 8.69, 'lowest pitch': 4.29, 'duration': 0.32, 'prosody hierarchy': '#2'}, {'character': '是', 'pinyin': 'shiii4', 'highest pitch': 7.98, 'lowest pitch': 7.49, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '港', 'pinyin': 'gang2', 'highest pitch': 10.15, 'lowest pitch': 6.52, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '版', 'pinyin': 'ban3', 'highest pitch': 10.15, 'lowest pitch': 5.91, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '代', 'pinyin': 'dai4', 'highest pitch': 7.36, 'lowest pitch': 6.24, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '购', 'pinyin': 'gou4', 'highest pitch': 7.37, 'lowest pitch': 5.36, 'duration': 0.26, 'prosody hierarchy': '#4'}]