考博考试

【单选题】The Robogat is designed to pump water ______.
A．at a speed of 500 liters a minute
B．almost as fast as an airport tender
C．six times faster than an ordinary fire-engine
D．at a rate of an airport fire tender
网考网参考答案：D
网考网解析：
根据第二段第三句It is capable of pumping 3，000 liters of high-pressure water per minute--about the same rate as that from an airport fire tender，可直接得出答案为选项D。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>