___       is well known is that Africa had contacts with India and the Red Sea civilizations from the earliest times．

A．As

B．It

C．What

D．That

根据我国《银行贷款损失准备计提指引》规定，关于计提专项准备的说法正确的是（）。

A、正常类贷款不计提专项准备

B、关注类贷款计提2%专项准备

C、次级类贷款计提20%专项准备

D、可疑类贷款计提50%专项准备

E、损失类贷款计提100%专项准备