有关机关或者单位应当对新招录得人员和拟任副科级以上领导职务的人员，进行预防职务犯罪的岗位培训。
参考答案：错
The haze or smog was so serious that the winter running _________.Some students complained as they ran
A．could have cancelled
B．should have cancelled
C．must have been cancelled
D．ought to have been cancelled
邮政为社会提供的是（），其经济属性表现为服务性
A、劳务或服务
B、劳务或产品
C、产品或服务
D、信息或服务
