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请教8老师和其他老师，以前有有效中国十年签证，去年又得到Q2 120天签证。但没能成行！

现请问我的十年签证还有效吗？还是由于又申请了另一个签证，10年签证也作废了？

-I think it is still valid unless the Chinese Embassy/Consulate cancelled it on your passport. They will put a note on the visa idicating the visa was cancelled if they cancelled it. If you do not see such a note, then your visa should still valid.

Of course, you had better contact the Chinese Consulate which issued the visa to make sure the visa validity.