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Friends - Wikipedia
19 小时之前 · Friends is an American television sitcom created by David Crane and Marta Kauffman, which aired on NBC from September 22, 1994, to May 6, 2004, lasting ten seasons. …
Weimar Republic - Wikipedia
19 小时之前 · The coat of arms of the Weimar Republic shown above is the version used after 1928, which replaced that shown in the "Flag and coat of arms" section. The flag of Nazi …
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Incandescent light bulb - Wikipedia
19 小时之前 · A similar lamp designed for 230 V would produce only around 12.8 lumens per watt, and one designed for 30 volts (train lighting) would produce as much as 19.8 lumens per watt. …