Carbon, the major nutrient element of all plants, is available in seawater chiefly as HCO3-. There are small amounts of CO2, the proportion depending on pH and salinity. Carbon is fixed into organic...
Enterprise synopsis: This company mainly makes the LED photosource piece seal and various...
大意： Synopsis: 李爾王有三個女兒，在他八十幾歲不想再理政事時，他喚來三個女兒想知道...