我换了新护照，但旧护照上的中国签证仍然有效，我可以同时使用新旧两本护照进入中国吗？
I have obtained a new passport, but the Chinese visa on my old passport is still valid. Can I use both passports to enter China at the same time?
Yes, but the prerequisite is that the name, gender, date of birth, and nationality information on your old and new passports must be exactly the same. If there are any changes in the information, you will need to reapply for a visa.
