其原因是聋生存在不同程度前庭系统受损。
The reason is that there is different degree of vestibule system harmed in deaf student.
其原因是聋生存在不同程度前庭系统受损。
The reason is that there is different degree of vestibule system harmed ind...
其原因是聋生存在不同程度前庭系统受损。
The reason is that there is different degree of vestibule system harmed ind...
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