We（）our breakfast when the pilot came on board.

A.just have had

B.just had

C.have just had

D.had just had

电子公文的收发登记表、机读目录、相关软件、其他说明等应与相对应的电子文件一同归档保存，体现了电子文件归档范围的（）原则。

A、吻合性

B、适度放宽

C、综合性

D、完整性