Support facilities for electric cars, such as charging stations, have been built or are the process of being built in many cities across the country. 单选题 (10 分) 10分 A. on B. in C. to

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题目内容（国家开放大学理工英语）

Support facilities for electric cars, such as charging stations, have been built or are the process of being built in many cities across the country.
单选题 (10 分) 10分
A.
on

B.
in

C.
to

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