Is it necessary to freeze the deposit certificate of American tourist visa?

When applying for a tourist visa in the United States, you need to provide a certificate of deposit, a certificate of time deposit, or financial management certificates such as fund stocks. Deposit certificates issued by banks need to be frozen. The required amount is more than 50,000 yuan, and it must be frozen for at least 3 months. If you already have time deposit certificates, fund stocks and other financial management, or your bank balance is large, you don't need to go to the bank to issue another deposit certificate. /zd/xx