为防止酱油变质在生产过程中加进( )的苯甲酸钠。A．1‰ B．2‰ C．05‰ D

“学生成绩”表含有字段（学号，姓名，数学，外语，专业，总分）。下列程序的功能是：计算每名学生的总分（总分=数学+外语+专业）。请在程序空白处填入适当语句，使程序实现所需要的功能。 　　Private Sub Command1_Click( ) 　　Dim cn As New ADODB.Connection 　　Dim rs As New ADODB.Recordset 　　Dim zongfen As New ADODB.Fileld 　　Dim shuxue As New ADODB. Fileld 　　Dim waiyu As New ADODB. Fileld 　　Dim zhuanye As New ADODB. Fileld 　　Dim strSQL As Sting 　　Set cn = CurrentProject.Connection 　　StrSQL = “Select*from成绩表” 　　rs.OpenstrSQL, cn, adOpenDynamic, adLockptimistic, adCmdText 　　Set zongfen = rs.Filelds(“总分”) 　　Set shuxue = rs.Filelds(“数学”) 　　Set waiyu = rs.Filelds(“外语”) 　　Set zhuanye = rs.Filelds(“专业”) 　　Do while 【1】 　　Zongfen = shuxue + waiyu + zhuanye 　　 【2】 　　rs.MoveNext 　　Loop 　　rs.close 　　cn.close 　　Set rs = Nothing 　　Set cn = Nothing 　　End Sub

2（）

第二节：完形填空（共20小题；每小题1分，满分20分）

请认真阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。

Are you a man or a mouse? When people ask this question they want to know 36  you think you are a 37  person or a coward (懦夫). But you will never really know the answer to this question 38  you are tested in real life. Some people  39  they are brave but when they come face to face with real 40 , they act like cowards. Others think of themselves as cowards, but when they meet danger, they act like 41  .

Lenny had always thought of himself as a 42  person. He got worried before examinations. He worried about his job and health. All he wanted in life was to be safe and healthy. 43 , on January 15th, 2002, a plane crashed into the Potomac River in Washington. Lenny went to the river to see what was happening. He saw a woman in the  44  water. Lenny did not feel afraid. He kept very 45 and did a very dangerous thing. He jumped into the Potomac, 46  to the woman, and kept her head 47  the water. Seventy-eight people died that day. Thanks to Lenny, it was not  48 .

When you are in a very 49  situation and feel afraid, the body automatically produces a chemical in the blood. The chemical is called adrenalin.  50  adrenalin in the blood system, you actually feel stronger and stronger and are 51  to fight or run away. However, when you are absolutely terrified, the body can produce too much adrenalin. When this 52 , the muscles become very hard and you find you 53  at all. You are then paralyzed (使无能为力) with fear. This is 54 when we are very frightened, we sometimes say we’re “petrified”. This word comes from the Greek word “petros”, which means “stone”. We are 55  frightened that we become stonelike.

36. A. how           B. neither         C. whether        D. either

37. A. brave         B. real            C. hard             D. certain

38. A. when         B. until              C. after             D. once

39. A. realize             B. find              C. think             D. agree

40. A. life                    B. question       C. mouse         D. danger

41. A. soldiers            B. mice              C. heroes         D. cowards

42. A. useful              B. brave         C. nervous         D. terrible

43. A. So                 B. Therefore        C. Then            D. Actually

44. A. fresh              B. poisonous       C. warm            D. ice-cold

45. A. nervous              B. calm             C. frightened      D. excited

46. A. went                  B. helped        C. spoke            D. swam

47. A. in                     B. under         C. above            D. from

48. A. an accident     B. a mistake            C. seventy-eight    D. seventy-nine

49. A. dangerous           B. comfortable      C. different        D. favorable

50. A. With               B. Without             C. For             D. Like

51. A. afraid              B. unable        C. ready            D. anxious

52. A. gets             B. disappears       C. happens             D. goes

53. A. needn’t            B. can’t              C. mustn’t         D. shouldn’t

54. A. where                 B. how              C. because         D. why

55. A. really              B. very              C. such             D. so

作滴定分析时，由于颜色的判断造成了误差，该误差属于（）。

A、偶然误差

B、方法误差

C、操作误差

（）是环境规划中具有重要作用的基本活动。

A.环境评价

B.环境评价和预测

C.环境预测和决策

D.环境预测

为了降低齿轮传动中齿向载荷分布不均的程度，可以（）

A.增大重合度

B.进行轮齿齿顶修缘

C.将轮齿作彭形修缘

D.降低齿轮支承系统的刚度