只有当期货价格落在无套利区间上界之上或下界之下时,才出现可操作套利机会。( )
参考答案:对
I do ______ your timely help yesterday, without _______ I couldn’t have found the solution.
A.thank; which
B.appreciate; it
C.thank; it
D.appreciate; which
某人在乘车时遇到车祸,突然刹车时受伤,伤后右髋部疼痛,屈曲内收畸形,弹性固定。
首选哪项检查()
A.X线片
B.CT
C.MRI
D.心电图
E.DSA