违反治安管理行为者，情节特别轻微，并能及时改正或者主动承认错误的，可以减轻或不予处罚；对情节较恶劣的，要给以必要的惩戒。( )
参考答案：对
He is _______ a good teacher. He is also his students' good friend.
A．no more than
B．not more than
C．no less than
D．more than
诊断尿路结石首选的X线检查是
A．逆行肾盂造影
B．静脉尿路造影
C．肾动脉造影
D．CT
E．腹部平片+静脉尿路造影
