[新闻直播间]教育部启动县域义务教育优质均衡创建 2035年将全面实现义务教育优质均衡发展来源:央视网2021年12月02日 11:53 网络开小差了,请稍后再试 往期 片段 [新闻直播间]国家卫健委通报新冠肺炎疫情 昨日新增本土确诊病例53例 均在内蒙古2021-12-02 14:03:44 [新闻直播间]内蒙古 昨日新增本土确诊53例 无症状...
PROBLEM TO BE SOLVED: To provide an ornament being easy to attach and remove, capable of being held in a firmly coupled state after being coupled, and being excellent in design.;SOLUTION: This fastener includes a locking pin 2 with a groove 23 circling its outer periphery by one turn along...