1.由Now the UK has a new light bulb that can last 25 years or more. 可知答案。 2.由Rich Stachowski invented this Water Talky at the age of 10.可知答案。 3.由 It makes noises to tell users when they need to move.可知答案。 【答案】 1.C;2.B;3.D.反馈...
...Use compact fluorescent light bulbs(紧凑型灯泡). It's true that these bulbs are more expensive, but they last much 78. longer (long) and they can save energy... 相关知识点: 试题来源: 解析 答案见上根据空前的“much”可知,此处形容词需用其比较级形式。 故填 longer。
Light bulbs that are used in enclosed or recessed fixtures heat up more than if they're used in open fixtures. LED bulbs are especially sensitive to heat and won't last as long if used in these types of fixtures. If you want your LED bulb to last longer, look for a bulb rated for...
machines, shocks or even noise. The solution to this problem is usage of vibration resistant fan bulbs orrough service light bulbs. These bulbs have an extra filament that reduces the vibrations. Unlike most standard incandescent bulbs which last anywhere between 700 and 1,000 hours, rough ...
Sun Filled LED are the closest light bulbs to natural sunlight, helping regulate the body’s natural sleep-wake cycle. Get better sleep and feel more alert...
Who invented long-lasting light bulbs?The Wright brothers.Thomas Edison.Margaret Knight. 相关知识点: 试题来源: 解析 Thomas Edison. 这个问题询问的是持久耐用的电灯泡的发明者。莱特兄弟以发明飞机闻名,玛格丽特·奈特是一位多产的发明家,但他们都与电灯泡的发明无关。托马斯·爱迪生在1879年发明了第一种实用...
百度试题 结果1 题目75.Long ago(很久以前),we didn't have light bulbs in the world. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
Byline: Daily Mail ReporterIF you already dislike their dull glow and ugly appearance, here's another reason to take a dim view of energy efficient light bulbs.Many of the new LED bulbs don't last as long as they claim, tests show.Some did not even reach the EU's new minimum of 6...
"CFLs save energy and last longer. They can savemoney in the long run " said a British official. CFLs use67% less electricity than the older bulbs. Scientists saythat if everyone used CFLs electricity use would be cutby 18% . There would also be much less greenhouse ga- ...
Long-Lasting LEDs last longer than many other lighting technologies. Different bulbs fordifferent growth stages. Balanced Light Spectrum These bulbs optimize the seeds and greens stages of growth with a balanced red:blue light spectrum that appears white to the eye. Advanced Red Light Spectrum These...