Ch\u01b0\u01a1ng I – B\u00e0i 7: Th\u1ef1c h\u00e0nh: Th\u00ed nghi\u1ec7m tho\u00e1t h\u01a1i n\u01b0\u1edbc v\u00e0 th\u00ed nghi\u1ec7m v\u1ec1 vai tr\u00f2 c\u1ee7a ph\u00e2n b\u00f3n<\/a><\/blockquote><\/iframe>