在近两年的经营费用中，公司明显增加了股权激励等相关支出（当前股权激励占比将近一半）。若剔除股权激励的影响，公司本季度的核心经营费用为 20.4 亿美元，环比减少 0.9 亿美元。
We can modify our ZK credential to support a limit of N shows as follows. First, let’s have the User select a random key K for a pseudorandom function (PRF), which takes a key and an arbitrary input and outputs a random-looking outputs. We’ll embed this key K into the signed credential. (It’s important that the Issuer does not learn K, so this often requires that the credential be signed using a blind, or partially-blind, signing protocol.3) We’ll now use this key and PRF to generate unique serial numbers, each time we “show” the credential.
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Purple: ___ Chicken
2. 不扫陌生二维码、不点陌生链接。遇到有人说互换、免费送五福，需要扫码或点链接，先核实对方身份，确认没问题再操作。