例句與用法

1. In china , futures contract has exercised several periods , such as progranune research period , current contract test period , futures coutract test period , qovernmend and prepare period , etc . it is being the stage from research test stage to the normal development stage , and has finished a change from forward contract to futures contract
   我國期貨市場正由研究試點階段向常規(guī)發(fā)展階段過渡，先后經(jīng)歷了方案研究、現(xiàn)貨試點、期貨試點、治理整頓等幾個時期。在不同的時期，合同始終作為一種交易形式而存在，并經(jīng)歷了由遠(yuǎn)期合同向期貨合同的轉(zhuǎn)變。