【判断题】半导体二极管的单向导电性是指其外加正向电压时截止,外加反向电压时导通。
【单选题】二极管的单向导电性是指加正向电压 ,加反向电压 。
【判断题】六艺中“礼”指的是学习社会中待人接物的行为规范。()
【判断题】In“Date of birth“of the entry card, D refers to day, M refers to month and Y year.
【简答题】二极管的单向导电性是指二极管外加正向电压(二极管正极电位高于负极电位)时二极管( ),反之则二极管( )。
【判断题】The receptionist should fill in the information such as guest’s name, sex, date of birth, the valid card number, type of visa, permanent address etc. on the registration card.
【简答题】名词翻译 1、family name 2、first name 3、landing card 4、date of birth 5、town and country of birth 6、passport no. 7、contact address 8、length of stay 9、port of last departure 10、signature
【单选题】从( )站立为起始,在严格地经过造型后,再回到( )站立,这个动作即称之为一个动作。