搜尋結果
2024年5月3日 · Influenza, commonly known as " the flu " or just " flu ", is an infectious disease caused by influenza viruses. Symptoms range from mild to severe and often include fever, runny nose, sore throat, muscle pain, headache, coughing, and fatigue. These symptoms begin one to four (typically two) days after exposure to the virus and last for about ...
- Influenza viruses
- >290,000–650,000 deaths per year
2 天前 · It was devised by the International Phonetic Association in the late 19th century as a standardized representation of speech sounds in written form. [1] The IPA is used by lexicographers, foreign language students and teachers, linguists, speech–language pathologists, singers, actors, constructed language creators, and translators.
- 1888 to present
- Alphabet, – partially featural
6 天前 · Terminology and periodisation Palais des Papes (Avignon, France) The Middle Ages is one of the three major periods in the most enduring scheme for analysing European history: Antiquity, the Middle Ages and the modern period. The Italian Leonardo Bruni (d. 1444) was the first historian to use tripartite periodisation in 1442, and it became standard with the German historian Christoph Cellarius ...
4 天前 · Hiragana ( 平仮名, ひらがな, IPA: [çiɾaɡaꜜna, çiɾaɡana (ꜜ)]) is a Japanese syllabary, part of the Japanese writing system, along with katakana as well as kanji . It is a phonetic lettering system. The word hiragana literally means "common" or "plain" kana (originally also "easy", as contrasted with kanji). [1] [2] [3]
1 天前 · Royal Mint Isaac Newton in old age in 1712, portrait by Sir James Thornhill In the 1690s, Newton wrote a number of religious tracts dealing with the literal and symbolic interpretation of the Bible. A manuscript Newton sent to John Locke in which he disputed the fidelity of 1 John 5:7—the Johannine Comma—and its fidelity to the original manuscripts of the New Testament, remained ...
2024年5月3日 · The Internet of things (IoT) describes devices with sensors, processing ability, software and other technologies that connect and exchange data with other devices and systems over the Internet or other communications networks.[1][2][3][4][5] The Internet of things encompasses electronics, communication, and computer science engineering ...
1 天前 · Wireless LAN (WLAN) channels are frequently accessed using IEEE 802.11 protocols. The 802.11 standard provides several radio frequency bands for use in Wi-Fi communications, each divided into a multitude of channels numbered at 5 MHz spacing (except in the 45/60 GHz band, where they are 0.54/1.08/2.16 GHz apart) between the centre frequency of the channel.
