【简答题】The ideal college would be a kind of educational retreat in which you could try to find yourself; find out what you like and want; what you are and are not good at.
【单选题】S1: What are the main kinds of pumps on board ship? S2: Besides the centrifugal pump, there are reciprocating pump, vane pump, gear pump and screw pump . Q:What kinds of pumps are there not mentioned ...