【单选题】某投资者预通过蝶式套利进行玉米期货交易,他买入2手1月份玉米期货合约,同时卖出4手3月份玉米期货合约,再?
【判断题】Parole refers to the abstract linguistic system shared by all the members of a speech community.
【判断题】Parole refers to the abstract linguistic system shared by all the members of a speech community.
【单选题】某投资者预通过蝶式套利进行玉米期货交易,他买入 2 手 1 月份玉米期货合约,同时卖出 4 手 3 月份玉米期货合约,再 ?
B.
b.一天后买人 2 手 5 月份玉米期货合约
D.
d.一天后卖出 2 手 5 月份玉米期货合约
【单选题】听力原文:W: I just want to look at these jugs. I'm going to buy my mother one for her birthday. M: Those glass noses are nice. What does the woman want to do?
A.
She wants to buy her mother a birthday present.
B.
She likes to look at these beautiful jugs.
C.
She wants the man to help her with the jugs.
D.
She needs the jugs to decorate the room.
【单选题】某投资者预通过蝶式套利进行玉米期货交易,他买入2手1月份玉米期货合约,同时卖出5手3月份玉米期货合约,再( )。
【单选题】某投资者预通过蝶式套利进行玉米期货交易,他买入2手1月份玉米期货合约,同时卖出5手3月份玉米期货合约,再()