Revert "[fix]cannot submit question and answer"

This reverts commit f3a1b19a322039c2e2c20a27485a3f8569a838f1.
Revert "Revert "[fix]cannot submit question and answer""

This reverts commit 44ab9368d5f3109604bc2d2a994952b24621552a.
Revert "Revert "Revert "[fix]cannot submit question and answer"""

This reverts commit ddf9a7a71767a58c355c32d9366be0c98dc9c289.