【单选题】— is your father? Does he still w ork as an engineer? — Yes, he has been an engineer for thirty years .
【单选题】-- _____ is your father? Does he still work as an engineer? Yes, he has been an engineer for thirty years.
【简答题】He has been an ______ (拍卖师) for a long time.
【简答题】蓝牙路由机制中,移动终端MT是固定蓝牙主设备FM的( )。
【单选题】流动比率小于1时赊购原材料若干将会( )。
【简答题】He has been an active_________in the discussion.
【单选题】He has been an ______ for 13 years.
【简答题】He has been an ______ (拍卖师)for 13 years.
【单选题】— is your father? Does he still work as an engineer? —Yes, he has been an engineer for thirty years.