Home / Standards / GB/T 13504-2008 GB/T 13504-2008 Active Diagnostic rhyme test(DRT) method of Chinese articulation 汉语清晰度诊断押韵测试(DRT)法 Standard Type GBT ICS 33.020 CCS M04 Status 现行 Issue Date 2008-07-16 Implementation 2008-12-01 Responsible Dept 教育部(语言) Drafting Unit N/A