第1题:[单选题]( )S1:Some of our bilge pumps are out of order. We need a submerged pump.Could you provide one? S2:Yes, of course. Q:What does the first speaker want? A.An oil pump B.An emergency pump C.A submerged pump D.A shore pump 参考答案:C
第21题: [单项选择]What is the best title for the passage A. Science and the Trumpet B. Recordings of the Trumpet C. The Trumpet and Its Ancestry D. How the Trumpet is Made 参考答案:C 答案解析:[分析] 主旨题。从整篇文章来看,首先讲述了号的发展,然后讲述了号的种类,最后提到了号在历史和文化中的作用。故本文的最佳标题是“号及其祖先”。故本题的正确答案是C。