2、—ǘ→()b→()—bāzh→è—()p—ǔ→()z→()—zāy→è—()c—è→()s→()—sūw→ō—()2、写出复韵母的四声调。ai________________ün________________ou________________en________________ie________________ing________________er________________ong________________3、按要求分类。a s d o zi m si p ü yi shi ci