The primary purpose is to _____ those achievements in biological research _____ the public.A.make; known byB.make; known toC.make; know toD.make; knowing by
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B解析这题考察词组“make sb done，过去分词这里做宾语补足语，因为those achievements in biological research是被公众知晓，所以用known，be known to sb “为某人知道”，选B。