我们需要寻找一种有利于资产保值的方式。
因此增持美元国债就成为中国央行的暂时之选。[{'character': '因', 'pinyin': 'in1', 'highest pitch': 9.53, 'lowest pitch': 8.88, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '此', 'pinyin': 'cii3', 'highest pitch': 9.48, 'lowest pitch': 5.61, 'duration': 0.33, 'prosody hierarchy': '#3'}, {'character': '增', 'pinyin': 'zeng1', 'highest pitch': 10.8, 'lowest pitch': 10.39, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '持', 'pinyin': 'chiii2', 'highest pitch': 10.77, 'lowest pitch': 9.3, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '美', 'pinyin': 'mei3', 'highest pitch': 9.46, 'lowest pitch': 5.99, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '元', 'pinyin': 'van2', 'highest pitch': 9.12, 'lowest pitch': 5.99, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '国', 'pinyin': 'guo2', 'highest pitch': 9.11, 'lowest pitch': 6.11, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '债', 'pinyin': 'zhai4', 'highest pitch': 13.42, 'lowest pitch': 7.14, 'duration': 0.25, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.09}, {'character': '就', 'pinyin': 'jiou4', 'highest pitch': 7.64, 'lowest pitch': 6.38, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '成', 'pinyin': 'cheng2', 'highest pitch': 7.4, 'lowest pitch': 6.38, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '为', 'pinyin': 'uei2', 'highest pitch': 6.87, 'lowest pitch': 6.24, 'duration': 0.22, 'prosody hierarchy': '#1'}, {'character': '中', 'pinyin': 'zhong1', 'highest pitch': 9.24, 'lowest pitch': 6.68, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '国', 'pinyin': 'guo2', 'highest pitch': 9.11, 'lowest pitch': 7.21, 'duration': 0.13, 'prosody hierarchy': '#1'}, {'character': '央', 'pinyin': 'iang1', 'highest pitch': 9.57, 'lowest pitch': 7.36, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '行', 'pinyin': 'hang2', 'highest pitch': 9.34, 'lowest pitch': 5.66, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 8.02, 'lowest pitch': 6.57, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '暂', 'pinyin': 'zan4', 'highest pitch': 10.36, 'lowest pitch': 7.07, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '时', 'pinyin': 'shiii2', 'highest pitch': 8.22, 'lowest pitch': 6.24, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '之', 'pinyin': 'zhiii1', 'highest pitch': 7.72, 'lowest pitch': 6.24, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '选', 'pinyin': 'xvan3', 'highest pitch': 7.72, 'lowest pitch': 4.11, 'duration': 0.35, 'prosody hierarchy': '#4'}]