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问题 选择题

中南半岛的地形特征是（　　）

A．西部山地，东部平原

B．山河相间，纵列分布

C．中部山地，四周平原

D．东部山地，西部盆地

答案

中南半岛上的山脉，大多由北向南延伸，河流流向也大致是自北向南，具有“山河相间，纵列分布”的地形特征．

故选：B．

选择题

下列过程中发生化学变化的是

A．用四氯化碳萃取溴水中的溴

B．用蒸馏的方法制取蒸馏水

C．用过滤的方法除食盐水中的泥沙

D．用加热的方法除碳酸钠中碳酸氢钠
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单项选择题

Extreme Programming(XP)is a discipline of software development with (71) of simplicity, communication，feedback and courage．Successful software development is a team effort-not just the development team，but the larger team consisting of customer, management and developers．XP is a simple process that brings these people together and helps them to succeed together．XP is aimed primarily at object-oriented projects using teams of a dozen or fewer programmers in one location．The principles of XP apply to any (72) project that needs to deliver quality software rapidly and flexibly． An XP project needs a (73) customer to provide guidance．Customers，programmers, managers，are all working (74) to build the system that’s needed．Customers-those who have software that needs to be developed-will learn simple, effective ways to (75) what they need，to be sure that they are getting what they need，and to steer the project to success.

72（）

A．small-sized

B．moderately-sized

C．1arge-sized

D．huge-sized
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