Ch\u01b0\u01a1ng 3 – B\u00e0i 23: Th\u1ef1c h\u00e0nh: Ph\u00e2n t\u00edch s\u1ef1 chuy\u1ec3n d\u1ecbch c\u01a1 c\u1ea5u ng\u00e0nh tr\u1ed3ng tr\u1ecdt (b\u00e0i 2)<\/a><\/blockquote><\/iframe>