委内瑞拉实行的固定官方汇率为1美元兑2.15博利瓦.Venezuela has a fixed official exchange rate of 2.15 to the dollar.该国居民向外汇交易商兑换美元,以防范通货膨胀或是本国货币博利瓦贬值的风险.Residents seeking protection against inflation or a devaluation of the bolivar turn to cur...