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Light bulbs ___ by Thomas Edison more than one hundred years ago.( )inventinventedare inventingwere invented 答案 D此题答案为:D 根据Light bulbs ___ by Thomas Edison 可知:Light bulbs和invent构成被动关系,应用被动语态.又根据more than one hundred years ago.可知用一般过去时,所以用一般过去时的被...
Edison himself had known tungsten would eventually prove to be the best choice for filaments in incandescent light bulbs, but in his day, the machinery needed to produce the wire in such a fine form was not available. 1910 - William David Coolidge of General Electric improved the process of ...
解答 答案:D 根据Light bulbs ___ by Thomas Edison 可知:Light bulbs和invent构成被动关系,应用被动语态.又根据more than one hundred years ago.可知用一般过去时,所以用一般过去时的被动语态,被动语态的构成:助动词be+及物动词的过去分词,故选:D. 点评 主要考查被动语态,当句子的主语是动作的承受者,应该用被...
Bare bulb pendant is a simple pendant construction consisting of a pre-wired 240 Volt lamp holder (E27, E14, B22 or E40) with cable color of your choice. Include a ceiling rose if required to match. Light globes can be seen for scale but generally bulbs
Experience the vintage elegance of Edison light bulbs. Find out how these retro-inspired bulbs and light fittings can transform your space.
Shop for the Bulbrite's 40-watt antique bulb. The Edison style shape depicts the look of 20th-century lighting. Unbeatable prices on vintage bulbs at 1000Bulbs.com!
E40 Mogul These bases are generally for use in large outdoor bulbs and spotlights. They are much larger than other bulb bases, which will limit the ways in which you can use them. They won’t fit into regular lamps and lights, so most people must buy an adapter to use this type of ...
Edison Dazzling 3D Glass Pyrotechnic LED Light Bulbs Christmas Decoration Creative Light Bulbs, Find Details and Price about Edison Decorative Antique Lighting from Edison Dazzling 3D Glass Pyrotechnic LED Light Bulbs Christmas Decoration Creative Light
G80 globe led filament edison light bulbs 4W E27 vintage style led filament light bulb 1.High Energy Efficiency,Low Power consumption,4W 6W 8W G80 vintage LED bulb 2.High Color Render Index: 80 3.High lumen per watts: 100lm/w 4.Working T...