### 1语法.avi **Size** 24816586 B **MD5** 57d355db1b2dfe372fc585b413b61f71 **SHA1** 93deeb8a332b448a68bf975534caa7e900af00da ### 2课文.avi **Size** 23263678 B **MD5** d325c7d56904f3d2de6e51e53dc50628 **SHA1** d676a27a8ff95d2b7caa2ffda243f43523cacf14 ### 3拓展.avi **Size** 19435522 B **MD5** 36b764eb45135915f89e771317d2e40b **SHA1** ab7967f6bf7febca7c88750de9018cdb77914b69