Which of the following statements is true according to the news?
A.In Vietnam there are three people died of suspected bird flu.
B.The virus has spread across the entire Thailand.
C.The health workers in Thailand conducted stringent surveillance measures.
第1题
泵的轴功率是指:
A.泵传给液体的功率
B.泵传给工作部件的功率
C.原动机输出的功率
D.泵轴所接受的功率
第2题
泵的轴功率是指______。
A.原动机的额定输出功率
B.泵传给液体的功率
C.泵轴所接受的功率
D.泵排的液体实际所得到的功率
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