Method of making a light bulb with a plurality of independently connected filaments for indicating graphic symbolsdoi:US3529335 APhilip C. DemarestUS
重点句型及难句分析: The higher the lumens, the brighter the bulb is.句意:流明越高,灯泡越亮。 “the + 比较级,the + 比较级”意为“越…… , 越… …”。 1. B 根据第二段中的“These older-style light bulbs have been in use since the late 1800s, but they're not great lights. "...
Passage 1Making invisible ink(隐形墨水) is a lot of fun. All you need is some common objects.The materials you'll need:. Half a lemon. Water Spoon. Bowl. White paper. Cotton bud. Light bulb Instructions:1. Squeeze(挤) some lemon juice into the bowl and add a few drops of water.2...
2. The sensation of perceiving light; brightness: a sudden light that made me blink. 3. a. A source of light, especially a lamp, a lantern, or an electric lighting fixture: Turn out the lights when you leave. b. The illumination derived from a source of light: by the light of the...
Consider this: Edison failed 10,000 times before he invented the light bulb. When he was asked how he felt to fail that many times, he said that he hadn't failed 10,000 times, but rather had learned 10,000 things that didn't work.Finally, when you make a mistake, you are that ...
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(A) Making available tea(隐形墨水) is a lot of fun All you need is some common things . What you'll need: • Half a lemon • Water • spoon • Bowl • White paper • Cotton bud(棉花) • Light bulb(灯泡) Instructions: ...
1. D ]"Put the cotton bud into the mixture and write a message onto the white paper.”可知,用棉签是为了写一些东西。 2. C 解 ]据"When you are ready to read your secret message or show it to someone else, heat the paper by holding it close to a light bulb.”可知,加热纸张可以使...
Unit 1 Making a Difference I. Teaching Aims 1. Talk about science and scientists; 2. Talk about people; 3. Practise describing people and debating; 4. Learn more about the infinitive; 5. Write a descriptive paragraph; II. Teaching time: four periods ...
aEdison sent understands the light bulb, Bell invents the telephone, Nobel has invented the blasting explosive, finished makes it the intelligible type printing method, Cai Lun has invented the papermaking technique 爱迪生被送了解电灯泡,响铃发明电话,诺贝尔发明了炸药,完成的牌子它打印方法, Cai Lun的...