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2 天前 · Overview. Mobile base station at Hatta city, UAE. 5G networks are cellular networks, in which the service area is divided into small geographical areas called cells. All 5G wireless devices in a cell communicate by radio waves with a cellular base station via fixed antennas, over frequencies assigned by the base station.
2 天前 · Qin Shi Huang (Chinese: 秦 始皇, pronunciation ; February 259 – 12 July 210 BC) was the founder of the Qin dynasty and the first emperor of China. Rather than maintain the title of "king" (wáng 王) borne by the previous Shang and Zhou rulers, he assumed the invented title of "emperor" (huángdì 皇帝), which would see continuous use by monarchs in China for the next two millennia.
2 天前 · Judith Pamela Butler [1] (born February 24, 1956) is an American philosopher and gender studies scholar whose work has influenced political philosophy, ethics, and the fields of third-wave feminism, [2] queer theory, [3] and literary theory. [4]
4 天前 · In mathematics, sine and cosine are trigonometric functions of an angle.
3 天前 · The Israel Central Bureau of Statistics defines the population of Israel as including Jews living in all of the West Bank and Palestinians in East Jerusalem but excluding Palestinians anywhere in the rest of the West Bank, the Gaza Strip, and foreign workers anywhere in Israel.
2 天前 · This is a list of countries by external debt: it is the total public and private debt owed to nonresidents repayable in internationally accepted currencies, goods or services, where the public debt is the money or credit owed by any level of government, from central to local, and the private debt the money or credit owed by private households or...
2 天前 · Ayatollah Ruhollah Musavi Khomeini [b] (17 May 1900 or 24 September 1902 [a] – 3 June 1989) was an Iranian Islamic revolutionary, politician, and religious leader who served as the first supreme leader of Iran from 1979 until his death in 1989.
