GPD-enquete 1991 : De staat van het land
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GPD newspaper survey, the state of the nation. Who takes care of r.'s children / educational level of people r. meets every day / job security, preferred number of working hours...
GPD报社民调（GPD newspaper survey）：国家现状专项调研。本次调研覆盖的议题包括：受访者（respondent）子女的照料主体、受访者日常接触人群的受教育水平、工作保障状况、理想工作时长……
