【单选题】What happened to Mr. Navorski’s country?
A.
There was a military coup in his country.
B.
There was an earthquake in his country.
【判断题】对有介质吸收现象的大型电机、变压器等设备,其绝缘电阻、吸收比和极化指数的测量结果,与所用绝缘电阻表的电压高低、容量大小及刻度上限值等无关。( )
【单选题】Can Mr. Navorski understand the two officers’ questions?
【单选题】Can Mr. Navorski speak English fluently?
【单选题】What is the bad news to Mr. Navorski?
A.
He is not allowed to enter the US.
B.
He left his suitcase on the plane.
【简答题】接触器是一种典型的电磁式电器,电磁式电器由三部分组成: 、 和灭弧装置。
【单选题】Is Mr. Navorski ‘s visa valid?
【单选题】What does the officer ask Mr. Navorski to show?
A.
Return ticket and passport
【多选题】单片机最小系统,或者称为最小应用系统,是指用最少的元件组成的单片机可以工作的系统.对51系列单片机来说,最小系统一般应该包括哪些?
【判断题】对有介质吸收现象的大型电机、变压器等设备,其绝缘电阻、吸收比和极化指数的测量结果,与所用兆欧表的电压高低、容量大小及刻度上限值等无关。