___&

发布时间：2020-07-10 10:24:37

___       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

网友回答

C解析考查名词性从句。此题考查的是主语从句，主语从句中缺少主语，所以用what，选C。
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