貌似有一只是说神马有一个cXX灯比原先常见的标准灯好,质量好啥的,卖的很好。现在又有了新的一款LED灯,跟C灯质量一样,但使用时间是C的5倍,同时价格也是C的5倍。问下面哪一个most supported啥的 A led灯会多用在修灯困难的地方 B C貌似不大靠谱 D C灯 are willingto 提高使用时间 为了竞争 E LED灯 are willing to 降低价格 为了竞争 当时脑子像灌了切糕 有些迷茫和彷徨
A is the answer. From your description, the LED light is more durable with a useful life 5 times as long as the old one. So is its price. However, you do not need to replace the LED light as often as the old model, and this is where the saving comes from. Especially, the LED light is an ideal substitute for applications where it is very hard to replace bulbs.