【判断题】在低压配电系统中,广泛采用额定动作电流不超过40mA,无延时动作的剩余电流动作保护器,作为直接接触触电保护的补充防护措施。( )
【简答题】The English are often considered as unfriendly people who don't talk to strangers, but not London taxi drivers. I once asked a cabbie to describe his life to me and he didn't stop talking until I arri...
【简答题】( )支出应在多个会计年度分期摊配计入产品成本或期间费用;( )支出则一般应计入当期产品成本或期间费用。
【判断题】在低压配电系统中,广泛采用额定动作电流不超过30mA,无延时动作的剩余电流动作保护器,作为直接接触触电保护的补充防护措施(附加防护)。()
【单选题】The two girls are so alike that strangers find ________ difficult to tell one from the other. [ ]
【单选题】Imagine a situation ______ two strangers are talking to each other after someone they both know has left the room, or the café or party. etc. [ ]