The factory operated_______until the order was filled.

2023-08-04

A.at times
B.to the minute
C.day by day
D.around the clock

参考答案:D

考查语境分析和词语辨析。句意为“工厂地工作,直到把订的货物赶出来为止”。at times“有时”,to the minute“恰好,一分不差”,day by day“一天天”,around the clock“昼夜不停地”。根据语境,应为工厂昼夜不停地工作。故选D。