题目

下图1、图2表示某种生物的两种染色体行为示意图，其中①和②、③和④互为同源染色体，则两图所示的变异                                          A.均为染色体结构变异              B.基因的数目和排列顺序均发生改变 C.均发生在同源染色体之间          D.均涉及DNA链的断开和重接The famous composer（作曲家）, Albert Roussel, didn’t have a good start in this career. However, he achieved a great deal of success as a result of a _______ .Roussel’s parents died when he was eight and he went to live with his ________ . As a little boy, he fell in love with music and ________ himself about it by reading through the family collection that his mother kept, ________ which there were a lot of related books.Three years later, Roussel’s grandfather died, and his mother’s sister decided to _____________ him. Her husband was a kind man and _______ for young Roussel’s music lessons. One summer vacation at a Belgian seaside added a second ________ to his life—the sea. Then he studied to be a naval cadet（海军学员），but still made time to study _______ .In the French Navy, he and two friends found the time to ________ a band, playing the works of Beethoven and other _______ . Roussel also began composing. On Christmas day 1892, he had his first chance to ________ as a composer, which turned out to be a success.That success _________ Roussel to write a wedding march（婚礼进行曲），and one of his navy friends ________ to show it to a famous conductor, Edouard Colonne. When Roussel’s friend ________ with the manuscript（手稿）, he reported that Colonne had advised Roussel to ________ his naval career and devote his life to music.Not long _______ , at the age of 25, Roussel decided to _______ Edouard Colonne’s advice. He gave his heart and soul to his composing and ________ a major force in twentieth century French music. Because of Eduoard Colonne’s inspiring ____ , Roussel devoted his life to music—but Rousssel’s ________ friend later admitted that he had made it up. He said he had never even shown Roussel’s manuscript to the famous conductor.1.A. joke B. guess C. lie D. hope2.A. neighbor B. grandfather C. aunt D. teacher3.A. chose B. taught C. improved D. asked4.A. before B. between C. within D. among5.A. raise B. catch C. miss D. leave6.A. applied B. paid C. looked D. waited7.A. love B. page C. wish D. job8.A. art B. English C. music D. dance9.A. deal with B. set up C. make for D. take away10.A. singers B. teachers C. professors D. composers11.A. produce B. perform C. study D. publish12.A. found B. forbade C. encouraged D. wanted13.A. came B. refused C. offered D. brought14.A. went B. ran C. left D. returned15.A. give up B. keep to C. begin with D. focus on16.A. however B. therefore C. then D. afterwards17.A. repeat B. change C. follow D. correct18.A. grasped B. replaced C. improved D. became19.A. advice B. request C. order D. will20.A. navy B. school C. music D. work