搜题请搜索小程序“爱下问搜题”
问题 单项选择题

某中学生，男，14岁，平日喜欢看书，几乎每天都长时间坐着，不喜锻炼，体重超重。请问他将来可能比别人更容易得什么病（）

A.心脑血管疾病

B.胃溃疡

C.肝癌

D.气管炎

E.以上都是

答案

参考答案：A

填空题

在酒精、食盐、氦气、食醋、纯碱、紫色石蕊中，

（1）常用做医用消毒剂是______（物质名称）

（2）在家庭厨房中，可用于除去热水瓶中的水垢的物质是：______（物质名称）；可用来洗涤油腻的炊具的是______（化学式）

（3）化学实验室中，可以把氯化钠溶液、稀硫酸和澄清石灰水一次鉴别出来的试剂是______（物质名称）
查看答案
单项选择题

Ravi, like many project (126) , had studied the waterfall model of software development as the primary software life-cycle (127) . He was all set to use it for an upcoming project, his first assignment. However, Ravi found that the waterfall model could not be used because the customer wanted the software delivered in stages, something that implied that the system had to be delivered and built in (128) and not as (129) .
The situation in many other projects is not very different. The real world rarely presents a problem in which a standard process, or the process used in a previous project, is the best choice. To be the most suitable, an existing process must be (130) to the new problem. A development process, even after tailoring, generally cannot handle change requests. To accommodate change requests without losing control of the project, you must supplement the development process with a requirement change management process.

A．customers

B．managers

C．users

D．administrators
查看答案