National Putonghua Proficiency Test Practice Questions - National Putonghua Proficiency Test (国家普通话水平测试, PSC) Exam

As a voiced retroflex fricative/approximant (舌尖后有声擦音/通音 [ʐ]/[ɻ]), produced with the tongue tip curved toward the hard palate with vocal fold vibration. As an alveolar lateral flap ([ɾ]), produced by tapping the tongue tip once against the upper gum ridge without friction. As a voiceless dental sibilant ([s]), produced with the tongue blade flattened behind the lower teeth. As a palatal glide ([j]), produced by arching the tongue dorsum against the hard palate with lip spreading.