10个月患儿，牛乳喂养，未加辅食。近2个月面色苍白，食欲低下，经检查诊断为缺铁性贫血

在2010年温哥华冬季奥运会上，有个别运动员因服用兴奋剂被取消参赛的资格。右图是检测出兴奋剂的某种同系物X的结构，关于X的说法正确的是(    )

A．X分子中不可能所有原子都在同一平面上

B．X 遇到FeCl₃溶液时显紫色，而且能使溴的四氯化碳溶液褪色

C．1 mol X 与足量的浓溴水反应，最多消耗5 mol Br₂

D．1 mol X在一定条件下与足量的氢气反应，最多消耗1 mol H₂

一张软磁盘上存储的内容，在该盘处于什么情况时，其中的数据可能丢失

A．放置在声音嘈杂的环境中若干天后

B．携带通过海关的X射线监视仪后

C．被携带到强磁场附近后

D．与大量磁盘堆放在一起后

魏良辅的《（）》是关于昆曲的重要著作。

某资本家工厂共有资本100万元，其中购买劳动力部分为40万元，一次生产耗费不变资本为50万元，生产出商品的价值150万元。该资本的剩余价值率是( )。

A．100%

B．300%

C．20%

D．150%

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．parts

B．modules

C．software

D．a whole