题目

“泰山脉动山泉水”取自泰山天然矿泉，判断“泰山脉动山泉水”属于溶液的依据是（ ） ①无色 ②混合物 ③化合物 ④均一性 ⑤稳定性． A．①②④   B．②④⑤   C．①③⑤   D．③④⑤ 答案：【考点】溶液的概念、组成及其特点． 【分析】溶液是均一、稳定的混合物；溶液的本质特征是均一性、稳定性，属于混合物，据此进行分析判断 【解答】解：判断“泰山脉动山泉水”属于溶液的依据是：具有均一性、稳定性，属于混合物．无色不是判断是否属于溶液的依据，溶液不一定都是无色的 第三部分    阅读理解（共20小题；每小题2分，满分40分） Ks5u 阅读下列段文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将项涂黑。 Boston ― thieves dressed as police entered a museum early Sunday and stole 11 paintings, including major works by Rembrandt, Dagas, Manet, and Vermerr, FBI and the museum officials said. The first judgement placed value of at least $100 million on the works stolen from the Isabella Teward Gardener Museum, said Boston police spokesman Jim Tordan. The judgement was a loose（粗略的） one because the paintings have not been sold in nearly a century. But art experts said such well-known works could not be sold in nearly a century, authorities said. “It was not discovered until the cleaning people did some cleaning at 3 a.m.” said Paul Cavangah, special FBI agent in Boston. “This is one of those thefts(盗窃)where people actually spent some time researching and took specific things,” he said. He said the investigation(调查) would not be limited to the U.S. William Bobinson of Harvard University’s Foggel Museum, called the objects stolen “major works”. 56.The best headline for this article is ______ . A. A Theft Took Place in Boston   B. Artworks Stolen by Thieves C. Major Works     D. Investigation into the Theft 57. The theft was discovered by______ . A. Boston police    B. art experts C. the cleaning people    D. special FBI agent 58 Investigation into the theft will take place_______. A. in Boston   B. in the United States C.the Isabella Teward Gardener Museum      D. in the U.S and other countries 59. The thieves took paintings by______ . A. Jim Jordan B. art experts C. Paul Cavangah                    D. Rembrandt, Dagas, Manet, and Vermerr