漫画《一切正常》在人生观上给我们的启示是（ ） 一切正常 A．价值观对人生选

有两种纽扣，A种用4角可买6个，B种用6角可买4个，A、B两种纽扣单价的最简整数比是（______：______）．

北京第12届国际车展将于2012年4月23日～5月2日在中国国际展览中心新馆开展，预计展出的新能源车型和清洁能源车型比以往任何一届都多。回答问题。

小题1:改革开放后，国外知名品牌汽车生产厂纷纷在中国投资建厂，其区位选择的主要因素是

A．原料　　

B．技术

C．市场

D．动力小题2:若新能源车被广泛使用，将产生的积极影响是

A．缓解城市交通压力

B．减轻大气污染

C．促进经济快速发展

D．提高能源利用率

若单相交流电路的电压和电流最大值分别为UmV、ImA，则视在功率S的表达式为（）。

A．UmIm

B．UmIm

C．UmIm

如图为反射弧的模式图，其中①是______；④是______．

The analysis phase answers the questions of who will use the system，what the system will do，and where and when it will be used．During this phase，the project team investigates any current system，identifies (71) ，and develops a concept for the new system．This phase has three steps：first， (72) is developed to guide the project team’s efforts．It usually includes an analysis of the current system and its problems，and the ways to design a new system．The next step is (73) ．The analysis of this information-in conjunction with input from the project sponsor and many other people-leads to the development of a concept for a new system．The system concept is then used as a basis to develop a set of business analysis models that describes how the business will operate if the new system were developed．The set of models typically includes models that represent the (74) necessary to suppor the underlying business process．Last，the analyses，system concepts，and models are combinedin to a document called the (75) ，which is presented to the project sponsor and other key decision makers that decide whether the project should continue to move forward．

A．project scope definition
B．problems analysis
C．decision analysis
D．requirements gathering