These natural parks are important for preserving animals which would risk dying out.A. m

问题补充：

These natural parks are important for preserving animals, which would risk dying out.

A. merely

B. rather

C. otherwise

D. moreover

答案：

A. merely

B. rather

(答案→)C. otherwise

D. moreover

解析：本题副词辨析。句意为：对于许多动物的保护来讲，这些自然公园是很重要的，否则，这些动物将面临灭绝的危险。C项表示“否则”；B项表示“相当”；A项表示“仅仅”；D项表示“然而”。根据句意，应选C项。