单选题 · 选择一个答案
Under the standard 5.5-hour work-time rule, you start work at 7 am and take no rest break. What is the latest time you must start a rest break of at least 30 minutes?
按通常的5.5小时工作时间规则，你上午7点开始工作且期间未休息。最迟应在何时开始至少30分钟的休息？
Start the rest break by 12:30 pm: 7 am plus 5 hours 30 minutes is 12:30 pm.
最迟中午12:30开始休息：7:00加5小时30分等于12:30。
阅读相关知识
Work includes driving, loading, cleaning, maintenance and administration. This question uses the standard rule, without special exceptions such as specified short-distance small passenger services.
工作时间包括驾驶、装卸、清洁、维护和行政等工作，不只是车辆行驶的时间。本题采用通常规则，不采用特定短途小型客运等例外。