题目

甲和乙两种固态物质的饱和溶液中溶质质量分数(ω)与温度(T)的关系如图所示。 (1)甲和乙两种物质的溶解度随温度的升高而__ __(填“增大”或“减小”)。 (2)下列对P点的含义叙述正确的是_ __(填标号)。 A．t1℃时，甲和乙两种物质的溶解度相等 B．t1℃时，甲和乙两种物质溶液的溶质质量分数相等 C．t1℃时，甲和乙两种物质的饱和溶液中溶质的质量相等 (3)25 g乙物质完全溶于100 g水中所需的最低温度是_ __℃。 (4)t2℃时，若从甲和乙两种物质的饱和溶液中 The Hollywood Reporter on Friday named Oprah Winfrey the most powerful woman in entertainment on its annual “Power 100 List”. Winfrey, whose “Oprah” talk show began in national syndication 22 years ago, played a role in the victory of President-elect Barack Obama by praising him early in his run and by supporting him throughout the campaign. Elizabeth Guider, editor of The Hollywood Reporter, remarked on Winfrey’s “great cultural influence” and said she could be “the most influential woman in America”. Winfrey, 54, jumped from the No.6 spot on the entertainment trade paper’s 2007 list to No.1 this year. The Hollywood Reporter noted that a study by University of Maryland economists found Winfrey’s support for Obama won him more than l million votes nationwide. Winfrey’s production company, Harpo Inc., made $ 345 million last year. She manages an empire that includes her TV show, a magazine and an online’ store. Anne Sweeney, president of Disney-ABC Television Group, was given the No.2 spot on the list after coming in top a year ago. Sweeney manages her company’s news, entertainment and daytime divisions, along with its cable and publishing branches. Amy Pascal, chairman of Sony Pictures Entertainment Motion Picture Group, won the No.3 spot on the list. Other women listed included actress Angelina Jolie, at No.24, who has strengthened her public image with charity efforts; comedian Tina Fey, No.51, in part for playing Sarah Palm, the 2008 Republican vice presidential nominee, in wildly popular TV impersonations (扮演) during the election campaign; and 16-year-old pop star Miley Cyrus, who rounded out the list at No.100. 59. What did Elizabeth Guider think of Oprah Winfrey? A. She played a great part in helping Obama winning the election. B. She deserved to be the most powerful woman in politics. C. She made a great contribution to American culture. D. She managed her company’s news and entertainment programs very well. 60. Which of the following is true about Winfrey? A. Her support for Obama helped him greatly in his winning the election. B. She was once chairman of Sony Pictures Entertainment Motion Picture Group. C. She rose to No. 2 on the entertainment trade paper’s 2007 list. D. She was a Hollywood reporter 22 years ago. 61. What is Tina Fey famous for? A. She supported pop star Miley Cyrus. B; She played Sarah Palm in popular TV programs. C. She made great efforts to help the needy. D. She took over an empire that includes TV show, a magazine and an online store. 62. Which of the following can best summarize the main idea of the passage? A. The Hollywood Reporter chose its 100 most powerful women. B. How Hollywood helped Obama and Sarah Palm. C. Harpo Inc, made $ 345 million last year. D. Oprah Winfrey, the most powerful woman in entertainment.