float x,y; printf（"输入购买金额："); scanf（"%f",&x); if（x＞=500) if （x＞=1000) y=0.8*x; else y=0.9*x; else y=x; printf（"实际支付金额为：%f\n",y);当输入800时，输出实际支付金额为（）。

YouareworkingasaDBAatNetFxCorporation.Auser，Scott，ismaintainingtherecordsofalltheemployeesintheEMPLOYEEtable.Initially，thesalaryoftheemployee，’E0025’，was$1800.On1May2004，thesalaryoftheemployee，’E0025’，wasincreasedby$200.

Theuser，Scott，issuedthefollowingstatementtomodifytherecordoftheemployee，’E0025’：

SQL>UPDATEEMPLOYEESETSALARY=2000

WHEREEMPNO=’E0025’；

SQL>COMMIT；

OnDecember1，2004，thesalaryoftheemployee，’E0025’，wasincreasedby$400.Theuser，Scott，issuedthefollowingstatementtomodifytherecordoftheemployee，’E0025’：

SQL>UPDATEEMPLOYEESETSALARY=2400

WHEREEMPNO=’E0025’；

SQL>COMMIT；

OnJuly1，2005，thesalaryoftheemployee，’E0025’，wasincreasedby$500.Theuser，Scott，issuedthefollowingstatementtomodifytherecordoftheemployee，’E0025’

SQL>UPDATEEMPLOYEESETSALARY=2900

WHEREEMPNO=’E0025’；

SQL>COMMIT；

OnJuly5，2005，theHRmanageraskedyoutogeneratetheincrementreportoftheemployee，’E0025’，fortheperiodbetween1May2004and1July2005.Whichflashbackfeaturewillyouusetogeneratetheincrementreport？（）

1．阅读程序，根据程序加工含义，填空 使用子程序调用，加工下图外形轮廓，工件上表面为Z轴原点，安全高度为100，Z轴进刀点为5，加工深度为20。 O0111(MAIN ); G90 G54 G17 G00 X0 Y0 S500 ① ; ② Z100.0 H01; M98P111; G90 G00 X130.0 Y0; M98P111; G90 G00 X0 Y80.0; M98P111; G90 G00 X130.0 Y80.0; M98P111; G90 G49 G00 X0 Y0 M05; M30; O0111(SUB ); ③ G00 Z-95.0; ④ X30.0 Y20.0 D01; G01 ⑤ F100; Y40.0; X-10.0; ⑥ ; X20.0; ⑦ X20.0 R10.0; G01 X20.0; Y-20.0; X-10.0; Y-30.0; X-60.0; G00 ⑧ ; ⑨ X-20.0 Y-30.0; ⑩ ;

在简单蒸馏釜内蒸馏1000Kg含C₂H₅OH (B)质量分数为60%和H₂O质量分数为40%的混合液。蒸馏结束时，残液中含C₂H₅OH(B)质量分数为5%。试求残液的质量是多少千克?该体系的汽液平衡数据如下：其中x为液相中B的质量分数，y为汽相中B的质量分数。

x	frac{1}{y-x}	x	frac{1}{y-x}
0.025 0.05 0.10 0.15 0.20 0.25 0.3	5.00 3.22 2.40 2.22 2.20 2.27 2.44	0.35 0.40 0.45 0.50 0.55 0.60 0.65	2.64 2.90 3.29 3.74 4.38 5.29 6.66

  (提示：简单蒸馏的雷利公式为：

  

  式中，F为原料液量，W为残液量；x_F(B)为原料液组成，x_W(B)为残液组成。)

(a) Contrast the role of internal and external auditors. (8 marks)

(b) Conoy Co designs and manufactures luxury motor vehicles. The company employs 2,500 staff and consistently makes a net profit of between 10% and 15% of sales. Conoy Co is not listed; its shares are held by 15 individuals, most of them from the same family. The maximum shareholding is 15% of the share capital.

The executive directors are drawn mainly from the shareholders. There are no non-executive directors because the company legislation in Conoy Co’s jurisdiction does not require any. The executive directors are very successful in running Conoy Co, partly from their training in production and management techniques, and partly from their ‘hands-on’ approach providing motivation to employees.

The board are considering a significant expansion of the company. However, the company’s bankers are

concerned with the standard of financial reporting as the financial director (FD) has recently left Conoy Co. The board are delaying provision of additional financial information until a new FD is appointed.

Conoy Co does have an internal audit department, although the chief internal auditor frequently comments that the board of Conoy Co do not understand his reports or provide sufficient support for his department or the internal control systems within Conoy Co. The board of Conoy Co concur with this view. Anders & Co, the external auditors have also expressed concern in this area and the fact that the internal audit department focuses work on control systems, not financial reporting. Anders & Co are appointed by and report to the board of Conoy Co.

The board of Conoy Co are considering a proposal from the chief internal auditor to establish an audit committee.

The committee would consist of one executive director, the chief internal auditor as well as three new appointees.

One appointee would have a non-executive seat on the board of directors.

Required:

Discuss the benefits to Conoy Co of forming an audit committee. (12 marks)