简述总分类账与明细分类账平行登记的要点。

给定程序MODllC中函数fun的功能是：输出M行M列整数方阵，然后求两条对角线上各元素之和，返回此和数。 #inClude＜coMo.h＞ #inClude＜stdio.h＞ #dehne M 5 /************found************/ int fun(int n，int xx[][]) {int i,j，sum=0； printf("\n The%dx%d matrix：＼n"M，M)； for(i=0；i＜M；i++) { for(j=0;j＜M;j++) /************found************/ printf("%f"，xx[i][j])；printf("\n")； } for(i=0；i＜n；i++)sum+=xx[i][i]+XX[i][[n-i-1]； return(sum)； } main( ) {int aa[M][M]={{1,2,3,4,5)，{4,3,2,1,0)， {6,7,8,9,0}，{9,8,7,6,5},{3,4,5,6,7}}； clrscr( )； printf("\n The sum Of all elements On 2 diagnals is %d."fun(M,aa))； }

某项工程，业主与承包商签订了工程承包合同，合同中含有两个子项工程，估算工程量甲项为2300m³，乙项为3200m³。经协商，甲项单价为180元/m³，乙项单价为160元/m³。承包合同规定：

(1) 开工前业主应向承包商支付工程合同价的20%作为预付款；

(2) 业主自第一个月起，从承包商的工程款中按5%的比例扣留质量保修金；

(3) 当子项工程累计实际工程量超过估算工程量10%时，可进行调价，调价系数为0.9；

(4) 造价工程师每月签发付款凭证，最低金额为25万元；

(5) 预付款在最后两个月平均扣除。

承包商每月实际完成并经签证确认的工程量如表3-5所示。

[问题]

Before the widespread use of computers, managers could not make full use of large amounts of valuable information about a company’s activities. The information either reached managers too late or was too expensive to be used. Today, managers are facing a wide range of data processing and information instruments. In place of a few financial controls, managers can draw on computer-based information systems to control activities in every area of their company. On any kinds at performance measures, the information provided by these systems helps managers compare standards with actual results, find out problems, and take corrective action before it is too late to make changes.

The introduction of computerized information systems has sharply changed management control in many companies. Even a neighborhood shopkeeper may now use computers to control sales and other activities. In large companies, electronic data processing systems monitor entire projects and sets of operations.

Now, there are about 24 million microcomputers in use in the United States, one for every 10 citizens. It is estimated that by 1996, 61 percent of American managers will be using some sort of electronic workstation. In order for managers to be sure that the computer-based information they are receiving is accurate, they need to understand how computers work. However, in most cases they do not need to learn how to program computers. Rather, managers should understand how computerized information systems work; how they are developed; their limitations and costs; and the manner in which information system may be used. Such an understanding is not difficult to achieve.

One research found that business firms were more successful in teaching basic information about computers to business graduates than they were in teaching business subjects to computer science graduates.

46. In the second paragraph the author mentions a neighborhood shopkeeper to show that _____.

A. few people could afford a computer

B. computer is now becoming more and more widely used in business

C. only shopkeepers are wealthy enough to buy computers

D. computer is far more intelligent than man as far as business is concerned

47. From the third paragraph we learn that ________.

A. it is essential that managers know how to program computers

B. managers may sometimes receive inaccurate information from computers

C. in most companies, an employee has to share a computer with at least 9 other employees

D. computerized information system is perfect in every way

48. All of the following statements are true EXCEPT that _________.

A. computer science graduates are quick to learn business subjects because of their professional knowledge about computers

B. with the help of computers, company mangers are now more informed of what’s going on in their companies

C. computer is a great help for business management

D. computerized information enables managers to take timely measures to prevent possible mistakes

49. According to the passage, which of the following statements is right?

A. It’s a difficult task for the managers to deal with a wide range of computer-based information daily.

B. The introduction of computerized information system is a revolution in management

C. In order to perform good management, managers need to have much knowledge about computer.

D. A good knowledge of computer leads managers to success

50. What is the passage mainly about?

A. How to teach information about computers to business graduates.

B. Computer’s growing popularity nationwide.

C. Application of computer in business management.

D. Computer training program for mangers.

关于腹腔镜胆囊切除，胆管损伤，哪一项是不正确的

A．"典型"损伤是将胆总管误认为胆囊管

B．在肝右动脉周围进行电切、电凝、分离，可致总胆管损伤

C．胆管撕裂伤，即可进行单纯修补

D．胆管电热损伤后多出现胆瘘，可及早发现

E．肝外胆管解剖变异也是导致肝外胆管损伤的原因

租赁的特征不包括( )。

A．价值单方面的转移

B．所有权与使用权暂时分离

C．暂时让渡使用权

D．经营权与使用权暂时分离