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问题 填空题

若球的表面积为36π，则该球的体积等于______．

答案

因为球的表面积为36π，

所以4πr2=36π，球的半径为：r=3，

所以球的体积为：

4π
3
r3=36π．

故答案为：36π

单项选择题

Prior to the UML, there was no clear leading （） language. Users had to choose from among many similar modeling languages with minor differences in overall （） power. Most of the modeling languages shared a set of commonly accepted concepts that are expressed slightly differently in various languages. This lack of （） discouraged new users from entering the OO market and from doing OO modeling, without greatly expanding the power of modeling. Users longed for the industry to adopt one, or a very few, broadly supported modeling languages suitable for （） usage. Some vendors were discouraged from entering the OO modeling area because of the need to support many similar, but slightly different, modeling languages. In particular, the supply of add-on tools has been depressed because small vendors cannot afford to support many different formats from many different （） modeling tools. It is important to the entire OO industry to encourage broadly based tools and vendors, as well as niche products that cater to the needs of specialized groups.

there was no clear leading （） language

A．programming

B．modeling

C．formal

D．intelligent
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判断题

6—9月份为矿区治水的重点时间。
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