【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.
【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
【简答题】The distinction between langue and parole was made by the Swiss linguist F. de ________ in the early 20th century. Langue refers to the ______ linguistic system shared by all the members of a speech c...
【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】关于活体消化试验的定义正确的是
A.
以测定动物对饲料养分消化能力和饲料养分的可消化性为目的的试验
B.
以测定动物对饲料养分代谢能力和饲料养分的可消化性为目的的试验
C.
以测定动物对饲料养分消化能力和饲料养分的可利用性为目的的试验
D.
以测定动物对饲料养分代谢能力和饲料养分的可利用性为目的的试验