"这道题目还不简单"这句话中表达的意思是（）。A．这道数学题确实难度很大 B．吴老师

某公司2009年销售额为1000万元，销售净利率为12%。其他有关资料如下：①2009年财务杠杆系数为1.5；②2009年固定经营成本为240万元；③所得税税率为40%；④2009年普通股股利为150万元。
要求：
(1)计算2009年的税前利润。
(2)计算2009年的息税前利润。
(3)计算2009年的利息。
(4)计算2009年的边际贡献。
(5)计算2009年的经营杠杆系数。
(6)计算2009年的总杠杆系数。
(7)若2010年销售额预期增长20%，则每股收益比上年增长了多少

丙烯、液化汽的安全阀的检修周期为一年一检，检修内容为（）和（）。

完形填空（共20小题；每小题1.5分，满分30分）

阅读下面短文，撑握其大意，然后从36—55各题所给的四个选项（A、B、C和D）中，选出最佳选项,并在答题卡上将该项涂黑。

It was the time when the telegraph was the fastest method of long-distance communication. A young man  36 for a job as a Morse Code(摩尔斯电码)operator.

Having answered an ad in the newspaper, he went to the office address that was  37 .When he arrived, he entered a large, busy   38  filled with noise and clatter, including the sound of the telegraph in the background. A   39  on the wall told job applicants to fill out a form and wait until they were   40  to enter the inner office. The young man filled out his form and sat down with the seven  41 applicants in the waiting area.   42 a few minutes, the young man stood up suddenly,   43   the room to the door of the inner office, and walked right in.   44  the other applicants came alive, wondering what was   45   . They whispered among themselves that they hadn’t been told to come yet and thought that the young man made a   46   and wouldn’t be accepted.

  47 , when the employer went out of the office with the young man, he said to the other applicants , “Gentlemen, thank you very much for coming, but the   48   has just been filled .”

The other applicants began   49   and one of them   50   , “Wait a minute, I don’t understand. He was the   51  to come in, and we never even got a chance to be   52   . Yet he got the job. That’s not fair!”

The employer said, “I’m sorry, but   53   you’ve been sitting here, the telegraph has been  54 the following message in Morse Code: If you understand this message, then come right in. The job is yours.  55  of you heard it or understood it. This young man did. The job is his.”

36. A. allowed               B. applied              C. cared                           D. stood

37. A. listed                     B. proved                C. named                         D. formed

38. A. market                 B. school                 C. office                            D. clinic

39. A. letter                    B. book                    C. mirror                          D. sign

40. A. persuaded             B. refused              C. forced                          D. ordered

41. A. another                B. other                  C. others                          D. else

42. A. Since                     B. Before                C. After                            D. For

43. A. tied                        B. left                      C. crossed                       D. cleaned

44. A. Surprisingly         B. Strangely           C. Regularly           D. Naturally

45. A. going on               B. going for            C. set aside                     D. set up

46. A. difference            B. mistake              C. decision                     D. point

47. A. Therefore            B. However            C. Otherwise                  D. Moreover

48. A. job                         B. room                   C. seat                              D. gap

49. A. working                B. cheering            C. complaining               D. hesitating

50. A. spoke aloud         B. carried out       C. asked for                     D. told of

51. A .first                       B. best                    C. worse                          D. last

52. A. checked                B. interviewed      C. informed                     D. invited

53. A. at times               B. all the time       C. ahead of time            D. at one time

54. A. ticking out           B. knocking out     C. pointing out               D. showing out

55. A. Some                     B. None                   C. Any                                D. Each

塑料齿轮在结构上应减少和避免尖角，避免截面急剧变化，防止（）。

A、产生气泡

B、产生熔接痕

C、冷却一致

D、应力集中和冷却收缩不均匀