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

游客2024-10-03  9

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。
转载请注明原文地址:https://tihaiku.com/zcyy/3784829.html
最新回复(0)