单选题：The economics of energy market is increasingly similar to th

题目分类：英语六级
题目类型：单选题
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题目内容：

The economics of energy market is increasingly similar to that of the Internet in terms of marginal costs.

参考答案：

答案解析：

Microgrids, an approach of cutting peak demand, is beneficia

Microgrids, an approach of cutting peak demand, is beneficial to both consumers

分类：英语六级题型：单选题

A cancer patient has not only found herself more refreshed b

A cancer patient has not only found herself more refreshed but her tumors decre

分类：英语六级题型：单选题

第（43）题选

第（43）题选

分类：英语六级题型：单选题

第（41）题选

第（41）题选

分类：英语六级题型：单选题

第（42）题选

第（42）题选

分类：英语六级题型：单选题