题目内容
听力原文： How much do American high school students know about economics？ A new report shows that seventy-nine percent of twelfth-graders have at least a basic level of understanding. (29)The results come from testing eleven thousand five hundred students last year in public and private schools.
(30) In fact, students did better in economics than in history or science. Only forty-seven percent of those tested reached the basic level in history. And fifty-four percent performed at or above the basic level in science.
This is the first time the federal government has measured economic understanding among high school students. The study was done as part of the National Assessment of Educational Progress, called the Nation's Report Card.
How many students were in this test about economics？
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According to Professor Oswald, which of the following statements is CORRECT？
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Prince Henry aims to design vessels that could
听力原文： The modern sailing ship was developed by a man who never went to sea. He was Prince Henry of Portugal, the younger son of the Portuguese King and an English princess. Prince Henry lived in the fifteenth century. As a boy he became devoted to the sea, and [18] he dedicated himself to improving the design of ships and the methods of sailing them. In 1416, when he was twenty-two, Henry founded a school for mariners, to which he invited everyone who could help him—Jewish astronomers, Italian and Spanish sailors, and Arab mathematicians and map makers who knew how to use the crude compass of the day and could improve it. [19] Henry's goal was to design and equip vessels that would be capable of making long ocean voyages without having to keep close to the shore. The caravel, which he helped design, carried more sails and was longer and slimmer than any ship then made, yet was tough enough to stand up against gales at sea. He also developed the carrack, which was a slower ship, but one that was capable of carrying more cargo. [20] The world owes credit to Prince Henry for the development of the craft that made oceanic exploration possible. He lives in history as Henry the Navigator.
Prince Henry started his school to
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