Index of /h5_cdn/concentration/lessons_static/lesson13/lesson10/

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1_allright.mp3                                     29-Jul-2022 11:39               59958
1_complete.mp3                                     29-Jul-2022 11:39               54324
1_question.mp3                                     29-Jul-2022 11:39              153858
1_record.mp3                                       29-Jul-2022 11:39              746054
1_wrong.mp3                                        29-Jul-2022 11:39              121932
2_complete.mp3                                     29-Jul-2022 11:39               52446
2_question.mp3                                     29-Jul-2022 11:39              158866
2_wrong.mp3                                        29-Jul-2022 11:39              102526
ans_pic_2.png                                      29-Jul-2022 11:39               45008
bg1.png                                            29-Jul-2022 11:39              107241
bg2.png                                            29-Jul-2022 11:39              166796
multi_choose_tag_1.png                             29-Jul-2022 11:39                3752
ref_pic_2.png                                      29-Jul-2022 11:39               23381