请在 下方输入 要搜索的题目:

7. It was not until the early 1940s that stamps were first ________ to the Postal system.


A、invented;
B、inclined;
C、induced;
D、introduced

发布时间:2025-09-06 07:40:41
推荐参考答案 ( 由 快搜搜题库 官方老师解答 )
联系客服
答案:introduced
专业技术学习
专业技术学习
搜搜题库系统