--- She joined a football team last fall and was recently made captain.    

--- Never _____ she’d ever have that much energy.[ ]

A. I had thought                    

B. I would have thought    

C. could I have thought              

D. will I have thought

关于期货合约的标准化的意义，下列描述中，正确的有（）。

A.降低了交易成本

B.使期货市场具有很强的流动性

C.因转让无须背书，便利了期货合约的连续买卖

D.极大地简化了交易过程，便利了投机活动的进行