Suggest to try another browser, some browsers are incompatible. If it doesn't work, you can change the player, or there is something wrong with the network speed, which is possible. These solutions can be tried slowly.

The website of Chinese public education publishes all kinds of public examination information at the first time, and it is recommended to pay attention to it in time. I wish the exam success!

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If in doubt, please consult the public education enterprises in China.