DuoDuo is a great lone traveler crossing borders of nation, language and history, as well as a determined predictor of some of the most basic, universal human values that _____ in our troubled modern times.

A．have been overlooked

B．have overlooked

C．has been overlooked

D．is overlooked

工程勘察资质不包括以下（）。

A.综合类资质

B.专业类资质

C.施工类资质

D.劳务类资质