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； It's Important to check P&L statements from different accounting durations, as any improvements after some time come to be extra significant in comparison to the quantities themselves. It's important to match the revenue assertion with the hard cash stream statement since, beneath the accrual approach to accounting... waiting for link from Social Network Posts (72)