解析 A。LED 是 Light Emitting Diode 的缩写,意为“发光二极管”。选项 B“Lighting Emitting Diode”意为“照明发光二极管”,不是常见缩写;选项 C“Luminous Emitting Diode”意为“发光的二极管”,表述不准确;选项 D“Luminescent Emitting Diode”意为“发光的二极管”,表述不准确。
Meanwhile, most young people in the West are expected to leave what could be life's most momentous decision—marriage—almost entirely up to luck. 同时,人们认为西方的大多数年轻人把婚姻这一可能是人生最重要的决定几乎完全交由命运来安排。 柯林斯高阶英语词典 He drinks what is left in his glass ...
A light-emitting diode (LED) is a semiconductor device that emits light when an electric current flows through it. Based on the semiconductor material used and the amount of doping, an LED will emit a coloured light at a particular spectral wavelength wh
An interferometer is a machine, made of two or more conventional telescopes. 学生:好的,干涉仪是由两个或多个传统望远镜组成的机器。 I think the example they gave in the book was made from six? 我记得书中给出的例子是由六个组成的。 And they’re spread out; they’re not right next to ...
1What led you ___ that Bob might be the thief ?.A.to thinkB.thinkC.thinkingD.to thinking 2 What led you ___ that Bob might be the thief ?.A.to thinkB.thinkC.thinkingD.to thinking 3What led you ___ that Bob might be the thief ?. A. A.to think B. B.think C. ...
The Internet may be changing merely what we remember, not our capacity to do so, suggests Columbia University psychology professor Betsy Sparrow. In 2011, Sparrow led a study in which participants were asked to record 40 factoids in a computer (“an ostrich’s eye is bigger than its brain,...
A.中国的夜宵阅读短文,从 A、B、 C、D四个选项中,选出可以填入空白处的最佳选项。What is the ye xiao in your city?Ye xiao, or night snack is the 1 meal of the day in Chin a. It usually starts from8 p.m. 2 2 a.m. It is different in the north and 3 of the country.In the ...
What is high dynamic range (HDR) on displays? HDR is a technology that enhances the contrast and color range of a display, allowing it to show a broader range of colors and more detailed highlights and shadows. Does high dynamic range (HDR) make a significant difference in image quality?
·Why does the speaker say art matters in the very beginning of the video? ·Which, according to the speaker is the best way to drive home the message of saving water on Earth: presenting facts, displaying info wi...
Well, obviously, they had the wealth and the power to influence political leaders. But also, the truth is that these industry leaders made a significant contribution. Their investments in technologies led to the development of many new production techniques, which strengthened the economy. ...