The listening of the seventh grade big data paper can be listened to in the elephant e class. Elephant e class examination and evaluation platform developed in full accordance with the model of the college entrance examination, realizing the electronic management of the paper and pencil examination, a one-time solution to all the examination management affairs, which greatly facilitates the teachers to evaluate and guide the teaching. You can search for elephant e class on the website to enter and search for seventh grade big data volume listening to download.