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 Sensitivities method [2] entails first calculating possibility sensitivities often known as the Greeks due to the common observe of symbolizing the sensitivities utilizing Greek letters. La agudeza sensorial se refiere a la capacidad de observar o detectar pequeños detalles para ser conscientes de lo que ocurre... Successfully Submitted (Awaiting Approval)