单向双向：某些产品的手续费只在开仓时收取，有些则在开仓和平仓时都收取； The System for every revenue metric around the earnings and reduction assertion (P&L) is stated in the subsequent checklist: This technique calculates the worth of a trade dependant on the current plus the prior day's prices. The method for price impression using the revaluation strategy is La PNL est waiting for link from Press Release (93)