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In the factory's automated production line, the machine flashes red and green lights ______ to signal its current status.A. reluctantlyB. accidentallyC. alternatelyD. silently

In the factory's automated production line, the machine flashes red and green lights ______ to signal its current status.

A. reluctantly

B. accidentally

C. alternately

D. silently

题目解答

答案

C. alternately

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