The author mentions all of the following as results of a blackout EXCEPT..................

Câu hỏi :

The author mentions all of the following as results of a blackout EXCEPT..................

A. refrigerated food items may go bad

B. traffic lights do not work

C. people must rely on candlelight

D. elevators and escalators do not function

* Đáp án

D

* Hướng dẫn giải

Dẫn chứng: When there is a power failure, people grope about in flickering candlelight. Cars hesitate in the streets because there are no traffic lights to guide them, and food spoils in silent refrigerators.

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