信用证未规定偿付行费用的承担方时，其承担人应是（）.
A、受益人；
B、开证行；
C、申请人；
D、议付行；
参考答案：B
We _____ spend too much time in watching TV. [ ]
A. told don't
B. told not to
C. were told not to
D. were told to not
闭环控制是一种利用氧传感器对燃油喷射量进行智能修正的喷射控制。
