【多选题】关于期现套利交易,下列说法正确的是 ( ) 。
A.
期现套利有助于形成期货市场和现货市场之间的合理价格关系
B.
当期货和现货市场的价差过大时,交易者可在两个市场之间进行价差套利而获利
C.
当期货价格明显高于现货价格时,套利者可以通过买进现货同时卖出相关期货合约, 待合约到期,以所买入的现货进行交割而获利
【单选题】The language teacher gave the students a short list of words that are in common use in the UK but would either _____ or even offend Americans.
【单选题】汽车交流发电机装配电压调节器后,具有()。
【简答题】用简便方法计算. 50×26×4 25×3×4×20 24×25×5 80×(7×125) 27×4×5 15×7×6.
【单选题】关于充电电流不稳故障的症状,甲说充电电流不稳的症状是发动机在中速以上运转,电流表指示充电电流忽大忽小;乙说充电电流不稳的症状是发动机在中速以上运转,电流表指示时充时放,指针摆动大。你认为以上观点( )。
【单选题】The language teacher gave the students a short list of words that are in common use in the UK but would either _____ or even offend Americans.
【判断题】Applied linguistics serves as a mediating area which interprets the results of linguistic theories and makes them user-friendly to the language teacher and learner.
【判断题】汽车交流发电机装配电压调节器后,具有限制自身最大输出电流的性能。
【单选题】汽车交流发电机装配电压调节器后,具有()。