题目

如图的溶解度曲线，下列说法正确的是A.t1℃时，A的溶解度大于BB.t2℃时，A、B两溶液的溶质质量分数一定相等C.A物质的溶解度受温度影响较大D.分别将A、B在t1℃的饱和溶液升温至t3℃，两溶液的溶质质量分数都会增大 答案：【答案】C【解析】A、根据溶解度曲线可知，t1℃时，B的溶解度大于A，故A错误；B、t2℃时，没有指明溶液是否饱和，无法判定A、B两溶液的溶质质量分数是否一定相等，故B错误；C、根据溶解度曲线可知，A物质的溶解度受温度影响较大，故C正确；D、A、B两物质的溶解度都随温度的升高而增大，分别将ABillboardMay 30-June 5, University of WaterlooWednesday, May 30Gloria Steinem, author of “Revolution From Within” will discuss her book. 8 p.m. Public Library Park Branch. Further information: Susan Smith, 824-4120. ext. 2896.Thursday May 31 Noon hour concert at Art Centre Music Hall featuring chamber music; Jana Skareski, composer. 12 : 30 p.m. Admission free. Archeology Open House at WLU. Displays of photographs and objects from Africa, Southwest Asia, the Old and New World; the university’s permanent collection. 10 a.m. to 4 p.m.  Archeology rooms, 202 Regina St. Exhibit continues until June 6.Friday, June 1Noon hour discussion with Arthur Read, Dean of Arts and Science, WI.U.Topic: “Universities in the 2000’s”. Public Library Mairt Branch. Details: 743-0271. Food and drinks available.Saturday, June 2Arts Lecture Series with Dr. Mary Malone, Religious Studies, St. Jerome’s College.Topic: “Woman and Religion”. 9 : 30 a.m. Humanities Theatre. Details: 884-8110.Chamber Music Concert at WLU performed by music students of WLU. 8 p. m. Art Centre Music Hall. Admission: $ 6 adults; seniors and WLU students and staff member $ 3; High school and primary pupils, free.Sunday, June 3University of Waterloo 2001 Campus Day featuring Chemistry Magic Show, animal show, fashion show, square dancing and more. 9 a.m. to 5 p.m. Biology & Chemistry Block, WLU Campus. Further details: 824-4120, ext. 8366.Monday, June 4Slide/Video Presentation featuring Hong Kong, Macao and Singapore. Sponsored by International Graduate Students Committee (IGSC). All graduates welcome; free. 5 : 00~8 : 00 p.m. Humanities Theatre. Free snacks provided.Tuesday, June 5Quick Questions. Drop in to see Ms. Barb Riley, who can answer your brief career or job-related questions. 1 to 4 p. m. Career Services. Public Library Main Branch: For information call ext. 3001.84.  Rosa’s parents are both WLU professors. They are going to see Rosa perform on Saturday evening together with her grandpa and her 15-year-old sister. How much will the family pay for the tickets?A. $12.            B. $18.           C. $15.           D. $9.【小题1】Nick is eager to find a good job after graduation. From whom can he get some information?A．Gloria Steinem.B．Ms. Barb Riley.C． Jana Skareski.D．Arthur Read or Mary Malone.【小题2】When are you likely to meet quite a few graduates of Waterloo University?A．5:00~8:00 p.m., Monday.B．9:30 a.m., June 2.C．10 a.m. to 4 p.m., Thursday.D．12:00~1:00, June 1.【小题3】If you are interested in all the activities and lectures at weekend, how many places can you go at most?A．2.B．3.C．4.D．5.