Molds cannot produce their own food ______ their nourishment from living on dead

游客2024-10-03 52

问题 Molds cannot produce their own food ______ their nourishment from living on dead organic matter or on other living matter.

选项 A、obtain
B、obtaining
C、but obtain
D、is obtained

答案 C

解析根据英语的not...but...并列结构原则，正确答案是C。

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