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5 天前 · Gross domestic product (GDP) is the market value of all final goods and services from a nation in a given year. [2] Countries are sorted by nominal GDP estimates from financial and statistical institutions, which are calculated at market or government official exchange rates.
2024年6月14日 · The insights of the model, as exemplified by the Black–Scholes formula, are frequently used by market participants, as distinguished from the actual prices. These insights include no-arbitrage bounds and risk-neutral pricing (thanks to continuous revision).
4 天前 · Ekistics. Shinjuku skyscrapers (foreground) and Mount Fuji (background) in Tokyo, the world's most populous city. List of largest cities. List of cities proper by population density. Conurbation. Megacity. Megalopolis. Settlement hierarchy. Cities portal.
2024年6月14日 · Gold is a chemical element with the symbol Au (from the Latin word aurum) and the atomic number 79. In its pure form, it is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal, a group 11 element, and one of the noble metals. It is one of the least reactive chemical elements ...
3 天前 · PPP largely removes the exchange rate problem but not others; it does not reflect the value of economic output in international trade, and it also requires more estimation than GDP per capita. On the whole, PPP per capita figures are more narrowly spread than nominal GDP per capita figures.
3 天前 · The Heckler & Koch MP5 ( German: Maschinenpistole 5) is a submachine gun developed in the 1960s by German firearms manufacturer Heckler & Koch. It uses a similar modular design to the Heckler & Koch G3, and has over 100 variants and clones, [14] including selective fire, semi-automatic, suppressed, compact, and even marksman variants. [15] .
2 天前 · Renewable energy (or green energy) is energy from renewable natural resources that are replenished on a human timescale. The most widely used renewable energy types are solar energy, wind power and hydropower. Bioenergy and geothermal power are also significant in some countries.
