如果一个估计量是一致估计量，那么样本量越大，它就越可靠。（）

川乌药材横切片的形成层呈（）

A.环状

B.略呈方形

C.类多角形

D.波状

E.不规则状

“It was all his own idea,” says Pat, the wife of California high school football coach Bob Peters. Bob had ___36___ made a “motherhood contract(合同)”—declaring that for 70 days this summer he would ___37___  the care of their four children and all the housework. ___38___ he didn’t even know how to make coffee when he sighed, he was very confident.

After40 of the 70 days, he was ready to ___39___. “ I was beaten down, “ admits Bob. “Not only is motherhood a ___40___ task, it is an impossible job for any normal human being. ”

Bob and Pat were married in 1991. After the married, Pat ___41___ a secretary to help put him through university. ___42___ Bob has been the football coach while Pat raised the kids. ___43___ two years ago Pat went back to work. “ I had been ___44___ children so much,” she ___45___, “I couldn’t talk to a grown-up. ” She continued to run the household, ___46___ -- until Bob sighed the contract.

Bob tried hard to learn cooking, but the meals he prepared were ___47___. For the last three weeks, the family ___48___ a lot--- sometimes having MacDonald’s hamburgers for lunch and dinner.

___49___ housekeeping, a home economics teacher had told Bob that a room always looks clean ___50___ the bed is made. “ I found ___51___ –I shut the doors,” he says. Soon the kids were wearing their shirts inside out. “When we went to ___52___ Pat at work, I made them wear their shirts 53 side out so they would look clean. ”

Now that Bob has publicly ___54___  he was wrong, he is ___55___ the child-raising and household tasks with Pat.

36. A. only     B. just     C. nearly D. ever

37. A. stick to B. set about    C. think about D. takeover

38. A. If  B. As      C. Since  D. Although

39. A. carry on       B. give up      C. break down       D. find out

40. A. strange B. pleasant      C. difficult     D. serious

41. A. sent      B. employed   C. learned from      D. worked as

42. A. In time B. Before long       C. Since then  D. Later on

43. A. Then    B. Thus   C. So      D. Still

44. A. near     B. after   C. about  D. around

45. A. insists   B. sighs   C. jokes   D. apologizes

46. A. besides B. therefore    C. however     D. otherwise

47. A. terrible B. tasty   C. expensive   D. special

48. A. starved B. traveled      C. worked out D. ate out

49. A. Due to  B. As for C. Along with D. Except for

50. A. until     B. before C. if D. unless

51. A. an easier way      B. a cheaper way    C. a cleaner way     D. a harder way

52. A. receive B. welcome    C. greet   D. fetch

53. A. good    B. wrong C. right   D. opposite

54. A. admitted      B. suggested   C. agreed D. explained

55. A. operating     B. realizing     C. sharing       D. performing

设有如下通用过程： Public Sub Fun(a() As Integer, x As Integer) For i=1 To 5 x=x+a(i) Next End Sub 在窗体上画一个名称为Text1的文本框和一个名称为Command1的命令按钮。然后编写如下的事件过程： Private Sub Command1_Click()Dim arr(5)As Integer, n As IntegerFor i=1 To 5 art(i)=i+iNextFun arr, nText1. Text=Str(n) End Sub 程序运行后，单击命令按钮，在文本框中显示的内容是______。

A．30

B．25

C．20

D．15

在归还贷款本息合计时，转账支票上应填写（）。

A、贷款本息

B、贷款本金

C、贷款利息

D、任意金额

植物生命活动调节的主要形式是激素调节，请根据下面有关植物激素的实验研究，回答问题：（1）将少量赤霉菌培养液喷洒到水稻幼苗上，水稻患恶苗病（植株疯长）；科研人员分析得出赤霉菌培养液中产生以上效应的物质是赤霉素。通过以上实验能证明赤霉素是植物激素吗？为什么？（），（）。