78OA怀旧版，现在的78OA已经在印章、会议等功能上做了收费限制。这个版本是最早的版本，除了并发数30个外无任何限制-78OA remembers past times version, now 78OA has done to charge confinement in the seal, meetings and other functions. This version is the earliest edition, in addition to the concurrent numb