2. 外语
  3. No doubt, robots are having a dramatic effect______the labor market in this country.

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

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问题 No doubt, robots are having a dramatic effect______the labor market in this country.
选项 A、on
B、over
C、about
D、with
答案A
解析 have an influence／impact／effect on sth．是固定搭配，意为“对某事物有影响”，由此确定本题答案为A)。
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