Of course, it is best to bring a letter-it is best to use a card, and it is best to carry a small amount of US dollars with you, not exceeding 1000 US dollars.

In China, use cards to handle letters, preferably letters from visa and master-by cards. A dual-currency card with a high dollar amount is better, such as Bank of Communications.

Of course, the amount of cards you can get from ordinary small banks may be better.