The world's first-tier cities are ranked 5 in the United States. How many are there in China?

Name: The worlds first-tier cities are ranked 5 in the United States. How many are there in China?
Uploaded: 2024-04-20T16:47:20+08:00
Description: The worlds first-tier cities are ranked 5 in the United States. How many are there in China?

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