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问题 单项选择题

电子现金账户做芯片损坏销户时，柜台做销卡预受理，系统内记录的电子现金账户余额转入待清算账户，（）天清算周期后，余额自动圈提至借记主账户。

A.20

B.30

C.31

D.21

答案

参考答案：B

单项选择题

College librarian: Until three years ago, nonstudents used the library without charge. Then, because of our decreased budget, they were asked to pay $100 per year. Nevertheless, about 150 nonstudents still use the library without paying. We will therefore gain financially if we hire a guard to identify nonstudents and ensure that they have paid the fee.
Which of the following would it be most important to know in order to evaluate the librarian’s conclusion

A．The number of students who use the library annually.

B．The library’s budget this year.

C．Whether the library has installed an expensive computerized cataloging system.

D．How much the library’s budget was decreased three years ago.

E．(E) The annual cost to the library of hiring a guard.
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单项选择题

敏捷软件过程强调：让客户满意和软件尽早增量发布；小而高度自主的项目团队；非正式的方法；最小化软件工程工作产品以及整体精简开发。 (4) 不是采用这种软件开发过程的原因。

A．难以提前预测哪些需求是稳定的和哪些需求会变化

B．对于软件项目开发来说，设计和实现可以做到基本分离

C．从制订计划的角度来看，分析、设计、实现和测试并不容易预测

D．可执行原型和部分实现的可运行系统是了解用户需求和反馈的有效媒介
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