题目

Listen to the passage and fill in themissing words.W: Peru is a country on the Pacific coast of South America three main areas. It was the centre of the ancient Inca Empirein the 1400s and 1500s.Spain took control of it in the 16th century and ruleduntil 1821.So Spanish is the main language of Peru now.Peru is a popular destination for .There are twoespecially interesting tours for tourists from all over theworld. The first is Amazon Rainforest Tour. From there，youcan spend one day travelling boat to your accommodation inthe middle of the forest. Then you can spend 3 days therainforest若ax2+bx-2＞0的解集为{x|1＜x＜2}，则bx2+ax-4＞0的解集为（　　）A．{x|-1＜x＜4}B．{x|x＜-1或x＞4}C．{x|x＜-1或x＞43}D．{x|-1＜x＜43}