ChineseSince the major of international economics and trade is economics, it is naturally inseparable from the study of mathematics. Calculus, linear algebra, probability theory and mathematical statistics are essential, and the study of econometrics, international economics, statistics and other disciplines must have a relatively solid mathematical foundation. Engaged in international trade, English should be quite good, not only written English, such as foreign trade English correspondence, oral Engl...
elementary analysis! The application of lithium-ion batteries in the field of smart wearable devices
In recent years, a wave of innovation in the field of smart wearables has swept across the globe. As a product of the perfect integration of technology and ergonomics, wearable devices not only cover ···