阶梯状断层
参考答案：由若干条产状大致相同的正断层组合而成。
—We are going to Hawaii with my parents this month.
— [ ]
A. Have a good time!
B. Best wishes to you!
C. Congratulations I
D. Please go.
大豆提油套利的做法是( )。
A．购买大豆期货合约的同时卖出豆油和豆粕的期货合约B．购买豆油和豆粕的期货合约的同时卖出大豆期货合约C．只购买豆油和豆粕的期货合约D．只购买大豆期货合约
