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 components for each revenue metric on the earnings and reduction assertion (P&L) is said in the next listing: On ne change rien à ce qui est en practice de se passer, mais on modifie seulement son sens. En PNL, on distingue trois kinds de recadrage : Along with https://netwebdirectory.com/listings13149952/pnl-no-further-a-mystery