国开行发行1年期债券，规模60亿元，发行利率1.3910%，预期1.4000%，投标倍数3.40倍，边际倍数1.75倍；国开行发行3年期债券，规模50亿元，发行利率1.6025%，预期1.6000%，投标倍数3.04倍，边际倍数3.05倍。

Core Points - The China Development Bank issued a 1-year bond with a scale of 6 billion yuan and an issuance rate of 1.3910%, compared to an expected rate of 1.4000%, with a bid-to-cover ratio of 3.40 times and a marginal ratio of 1.75 times [1] - The China Development Bank also issued a 3-year bond with a scale of 5 billion yuan and an issuance rate of 1.6025%, against an expected rate of 1.6000%, with a bid-to-cover ratio of 3.04 times and a marginal ratio of 3.05 times [1]