客户申请办理委托代付后续贸易融资业务时，原则上最迟于代付到期前（）工作日提出申请。
A.30个
B.15个
C.10个
D.5个
参考答案：D
导体对电流的______作用叫做电阻，单位是______，它的符号是______．
______ should not be allowed to go out at night. [ ]
A. Twelve-years-old
B. Twelve-year-olds
C. Twelve year old
D. Twelve years olds
