Make sure that the warning light comes on in less than 3 seconds.
答案解析
解析:
当然,我会尽力帮助你理解这道题目。
首先,让我们看看题干:“Make sure that the warning light comes on in less than 3 seconds.” 这句话的意思是确保警告灯在3秒之内点亮。这里的“in less than 3 seconds”是一个关键点,它意味着时间限制是少于3秒。
现在我们来分析每个选项:
A. 确保警告灯至少亮3秒。
- 这个选项的意思是警告灯需要亮3秒或更长时间,这与题干的要求相反。
B. 确保告诫灯亮的时间不超过3秒。
- 这个选项的意思是警告灯亮的时间不能超过3秒,这听起来很接近题干的要求,但是用词上有些不同。
C. 确保警告灯在3秒内点亮。
- 这个选项直接对应题干的要求,即警告灯需要在3秒之内点亮,没有超过或不足的问题。
现在,让我们用一些生动的例子来帮助理解。想象一下,你是一名汽车工程师,你的任务是确保车辆的安全警告灯在紧急情况下能够迅速提醒驾驶员。如果警告灯需要至少亮3秒,那么在紧急情况下,驾驶员可能会在警告灯亮起之前已经采取了行动,这可能会导致安全问题。如果警告灯亮的时间不超过3秒,那么驾驶员有足够的时间做出反应,但这个表述有些模糊,因为它没有明确指出“亮起”的时间限制。而选项C则清晰地表明了警告灯必须在3秒内点亮,这是一个明确且安全的操作要求。
因此,正确答案是C,因为它准确地反映了题干的要求,即警告灯需要在3秒内点亮。
相关知识点:
确保警告灯,3秒内点亮
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