国开行发行3年期债券，规模80亿元，发行利率1.5968%，预期1.5500%，投标倍数2.43倍，边际倍数1.23倍；国开行发行7年期债券，规模20亿元，发行利率1.7044%，预期1.7100%，投标倍数5.23倍，边际倍数1.19倍。

Group 1 - The China Development Bank issued a 3-year bond with a scale of 8 billion yuan and an issuance rate of 1.5968%, which was lower than the expected rate of 1.5500%, with a bid-to-cover ratio of 2.43 times and a marginal ratio of 1.23 times [1] - The China Development Bank also issued a 7-year bond with a scale of 2 billion yuan and an issuance rate of 1.7044%, slightly above the expected rate of 1.7100%, with a bid-to-cover ratio of 5.23 times and a marginal ratio of 1.19 times [1]