In cold-water habitats, certain invertebrates and fish convert starches into com

游客2024-01-13  10

问题 In cold-water habitats, certain invertebrates and fish convert starches into complex carbohydrates, called glycerols, in effect manufacturing its own antifreeze.

选项 A、in effect manufacturing its own antifreeze
B、effectively manufacturing antifreeze of its own
C、in effect manufacturing their own antifreeze
D、so that they manufacture their own antifreeze
E、thus the manufacture of its own antifreeze

答案 C

解析 从句意可分析出,A、B、E中的its指代有误,应用their指代certain invertebratesand fish。C选项强调同时性,表示伴随情况,而D选项表目的,暗示了动作的先后顺序,即convert在先,manufacture在后。对句意进行比较之后,C较准确。原句强调两个动作的同时性。
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