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问题 填空题

一个小数，小数点右边第一位是______位，第二位是______位，小数点左的第一位是______位．

答案

一个小数，小数点右边第一位是十分位，第二位是百分位，小数点左的第一位是个位；

故答案为：十分，百分，个．

单项选择题

For nearly ten years, the Unified Modeling Language (UML) has been the industry standard for visualizing, specifying, constructing, and documenting the（71）of a software-intensive system. As the （72）standard modeling language, the UML facilitates communication and reduces confusion among project （73）. The recent standardization of UML 2.0 has further extended the language’s scope and viability. Its inherent expressiveness allows users to （74） everything from enterprise information systems and distributed Web-based applications to real-time embedded systems. The UML is not limited to modeling software. In fact, it is expressive enough to model （75）systems, such as workflow in the legal system, the structure and behavior of a patient healthcare system, software engineering in aircraft combat systems, and the design of hardware. To understand the UML, you need to form a conceptual model of the language, and this requires learning three major elements: the UML’s basic building blocks, the rules that dictate how those building blocks may be put together, and some common mechanisms that apply throughout the UML.

A．investors

B． developers

C． designers

D．stakeholders
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实验题

小文通过实验粗测大气压强的大小，他设计的方案是：将塑料挂钩的吸盘蘸水后，按在光滑的水平玻璃板上，挤出里面的空气，用弹簧测力计钩着挂钩缓慢往上拉，直到吸盘脱离玻璃板。实验时小文发现弹簧测力计的量程较小，于是他采用了如图所示的方式，他再次用弹簧测力计钩着滑轮绳子的自由端缓慢往上拉，直到吸盘脱离玻璃板，记录刚刚拉脱时弹簧测力计的示数为F，已知吸盘与玻璃板的接触面积为，大气压强的表达式为p=___________。（不计绳重、滑轮重及装置的摩擦） 

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