【单选题】The person who is _______ of the factory _______ ill since last week.
【单选题】离心泵的工作原理是利用叶轮高速旋转产生的( )
【单选题】The ____ person was in bad health. [ ]
【单选题】You should be careful of such a person flatters you in your presence and speaks ill of you in behind.
【单选题】轴流泵的工作原理是依靠叶轮旋转产生()来抽水的。
【单选题】The person ___ of the factory has ___ ill since last week.
【单选题】离心泵的工作原理是利用叶轮高速旋转产生的( )
【单选题】The person who is _______ of the factory _______ ill since last week.
B.
in the charge; has fallen