【简答题】The place _______interested me most was the Children's Palace. A. Which B. where C. what D. in which 2.Do you know the man _______? A. whom I spoke B. to who spoke C. I spoke to D. that I spoke 3.This...
【判断题】在触电机会较多、危险性较大的场所,局部照明和手提照明(如机床照明)应采用额定电压36V以下的安全灯。()
【单选题】在触电危险性较大的场所,采用的局部照明电压( )。
【单选题】在触电机会较多危险性较大的场所,局部照明和手提照明应采用额定电压为()以下的安全灯。
【简答题】合格的砖根据哪些性能分为优等品、一等品和合格品?
【简答题】The place _______interested me most was the Children's Palace. A. Which B. where C. what D. in which 2.Do you know the man _______? A. whom I spoke B. to who spoke C. I spoke to D. th...
【单选题】在触电机会较多危险性较大的场所,局部照明和手提照明应采用额定电压为( )伏以下的安全灯。
【单选题】Do you know the girl ______ just left the room?
【单选题】在触电机会较多危险性较大的场所,局部照明和手提照明应采用额定电压为()以下的安全灯。