跨期套利是围绕()价差而展开的。
A.不同期货合约相同交割月份
B.同种期货合约同种交割月份
C.不同期货合约不同交割月份
D.同种期货合约不同交割月份
参考答案:D
— I'm terribly sorry to have put you through so much trouble.
— ________. I know you didn't mean to. [ ]
A. Forget about it
B. No trouble
C. All right
D. You're welcome
体外循环