电缆工作票在许可之后，下一个环节是哪个步骤？（）
A.接收
B.确认
C.许可
D.执行
参考答案：D
Sometimes the police are not absolutely sure that someone has committed a crime, but ________ him of having done it.
A．charge
B．suspect
C．inspect
D．doubt
属于非参数方法的是（）
A.t检验
B.F检验
C.检验
D.率的标准化法
E.秩和检验
