No doubt, robots are having a dramatic effect______the labor market in this coun

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问题 No doubt, robots are having a dramatic effect______the labor market in this country.

选项 A、in
B、over
C、about
D、with
E、on

答案 E

解析 have an effect on sth．为固定搭配，意为“对某方面有影响”。故选E。

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