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Income Taxes (Tables)
6 Months Ended
Jun. 30, 2023
Income Tax Disclosure [Abstract]  
Schedule of Loss Before Income Taxes Loss before income taxes consisted of:
   June 30   June 30 
   2022   2023 
   RMB   RMB   US$ 
Non-PRC   
-
    
-
    
-
 
PRC   (12,981)   (5,834)   (806)
    (12,981)   (5,834)   (806)
Schedule of Income Tax Expenses The following table presents the composition of income tax expenses for the six months ended June 30, 2022 and 2023:
   June 30   June 30 
   2022   2023 
   RMB   RMB   US$ 
Current income tax expense   5    1,344    185 
Deferred income tax expense   
-
    
-
    
-
 
    5    1,344    185