45.原文：于生效之日起，此协议有效期为三年。译文：This agreement will become effective as of the effective date will remain in effect for three years.-湖北继续教育网网校

[主观题]

45.原文：于生效之日起，此协议有效期为三年。

译文：This agreement will become effective as of the effective date will remain in effect for three years.