Revocable credentials. Another approach is to build credentials that can be revoked in the event of bad behavior. This requires a procedure such that when a particular anonymous user does something bad (posts spam, runs a DOS attack against a website) you can revoke that specific user’s credential — blocking future usage of it, without otherwise learning who they are.
Prefix: MOONGATE_，这一点在WPS官方版本下载中也有详细论述
what substrings does the regex (a|ab)+ match in the following input?，详情可参考PDF资料
Мерц резко сменил риторику во время встречи в Китае09:25
The report outlines plans for more than 100 major projects over the next five years to expand China's industrial capacity, with a focus on science and technology, transportation and energy.