题目

There are four parts in IELTS: listening, speaking, reading and writing. Listening is very important. Are you confident? Have you made good preparation? The book IELTS Listening is helpful for your preparation for IELTS. Car and Driver is the world's most popular automotive magazine. It provides information and entertainment for people who like cars. It offers the best vehicle tests in the business. The magazine also covers the latest developments in car technology. Once you own the book Designing Effective Speech Interfaces , you will become a good speaker. Susan Weinschenk’s excellent id3．从如图中可以看出，德国的失业人数从1929年至1932年急速增加，从1933年失业人数开始大幅下降，失业人数下降的主要原因是因为（　　）A．德国建立了法西斯专政B．德国发动了第一次世界大战C．德国得到了美国的大力援助D．德国加入了欧共体