国家公务员的考试录用应遵循的程序是（）。

A、发布招考公告

B、资格审查

C、公开考试

D、严格考核

E、审批录用

Under a collection, a bank acts only as a collecting agent to（）the exporter in obtaining payment or acceptance of his draft before the release of documents to the importer.

A．guarantee

B．assist

C．promote

D．push