片语
Valid certificate of worksite作业场所的有效证件
Valid First Aid Certificate急救证书
valid quota allocation certificate有效配额分配证明书
valid medical fitness certificate有效健康证明书
valid d certificate有效证书
valid entry certificate有效入境证件
Valid accounting certificate会计上岗证
valid practising certificate有效执业证书
Valid BLS certificate保证基础生命支持技术在有效期内