The state fields for billing and shipping contain a two-letter state code such as 01 in Germany or CA in the United States.
用于支付和运送的 state 字段包含一个两个字母的州代码，例如德国中的 01 或者美国中的 CA。
In either case, you can code up a row of the ca as a binary number.
不管是哪种情况，都可以将CA的一行作为二进制数相加。
If your company does business with a public ca, you need to consider the vendor's level of service, legal liability and responsibility, code of ethics, and Certificate Practice Statement (CPS).
如果您的公司和公共ca打交道，您需要考虑供应商的服务水平、法律上的义务和责任、商业道德记录和Certificate Practice Statement (CPS)。
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