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单选题 Of course, the rivers and valleys and borders were long ago mapped; our blank spaces are the few remaining holes in the global communications network. … But quite soon those gaps will be filled. In this sentence,the tone is ______

A. sympathetic

B. cheerful

C. disheartened

D. optimistic

2022级大学英语C3课程封面

学科:2022级大学英语C3

时间:2023-09-24 08:21:45

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