【多选题】当发现PLC的特殊存储器不工作时可能是由于以下原因
【简答题】Fill in the blank with antonym of the underlined word. It is informal ( ) to wear T-shirt and jeans when you attend a business party.
【多选题】生活舞蹈有习俗舞蹈、( )、社交舞蹈、( )、体育舞蹈、教育舞蹈。
【简答题】A.The printing on her T-shirt has faded. B.It is not in fashion to have a logo on a T-shirt. C.She regrets having bought one of the T-shirts. D.It is not a good idea to buy the T-shirt.
【单选题】现代领导者,不论其职位高低,都会遇到授权问题。在实际授权中,应遵循一定的原则。下列哪一项原则是一位现代领导者授权时不必遵守的?