John Preston was tired()living in east London, in which he had moved after his wife's death.
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在反欺诈作业检查频率中,对于每年新进人员,每季度应抽查的比例为()
A. 10%
B. 25%
C. 50%
D. 100%
在银行卡收单业务中,银联特约商户代码由()位数组成。
A. 10
B. 15
C. 18
D. 20
线路作业前,必须对线路做好装设接地线等安全技术措施。作业时对一经操作即可送电的分段开关、联络开关,还应设专人看守。
A. 正确
B. 错误