出国留学用，去向国：俄罗斯，在南京公证处线上申办的选项中没有找到艾检证的选项

我要办理无犯罪记录公证，现在已拿到了广州派出所给出的无犯罪记录证明书（时间段是自本人出生至今）。但是我看准备文件中要求“申请人户籍有跨省市（地区）变动情况，需分别提供原户籍和现户籍所在地公安部门出具的无犯罪记录证明”。我的出生地、读书省市都不在广东，请问还需要再到出生地、读书地的派出所再开证明吗？

如果可以网上办理，请问如何办理。如果不能网上办理，窗口办理需要准备什么材料？谢谢。

dear sir/madam, i have done my degree from tianjin and currently living in my university. i have translated and notarized my documents from tianjin beifang notary office. and now i want to attest my documents from ministry of foreign affairs of china. as i cannot leave the tianjin (university regulations) so i want to apply for ministry of foreign affairs legalization online. but when i select the option for attestation online it includes the collective fee of translation, notarization and legalization. as i just need legalization so, please guide me how can i select the option for just legalization from ministry of foreign affairs of china. i will be looking forward to hearing from you soon.

委托书需要使领馆的公证吗？公证机构可以代办结婚证的领事认证和合法化证明吗？夫妻双方各持有的结婚证公证一本即可还是两本都要公证？