问题
单项选择题
模块结构图是信息系统设计中的一种工具，其中符号O表示______。
A．调用
B．数据
C．控制信息
D．转接符号
答案
参考答案：D
解析： 模块结构图中，方框表示模块；箭头表示调用；空心环箭头表示数据；实心圆箭头表示控制信息；圆表示转接。
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模块结构图是信息系统设计中的一种工具，其中符号O表示______。
A．调用
B．数据
C．控制信息
D．转接符号
参考答案：D
解析： 模块结构图中，方框表示模块；箭头表示调用；空心环箭头表示数据；实心圆箭头表示控制信息；圆表示转接。
RESOURCES BELONG TO THE SOCIETY When I arrived in Hamburg Germany, my colleague who worked there arranged a welcome party for me in a 36 . We noticed a few customers including several old ladies, were having their meal. When a dish is 37 , the waiter would distribute the food for them, and they would 38 every bit of the food on their plates. As I was hungry, my local colleague 39 much food for me. Since there were other things to do, we did not 40 much time dining. When we planned to leave, there was still about one third of 41 food left. When we were leaving the restaurant, we 42 someone calling us. When the old ladies spoke to us in English, we understood that they were 43 about us wasting so much food. “We 44 for our food; it is none of your 45 how much food we left behind”, my colleague told the old ladies. They got angry, and one of them 46 made a call to someone. After a while, an officer in 47 arrived. Upon knowing what had happened, he issued us a 50-euro 48 . The officer told us in a stern（严厉的）voice: “order 49 you can consume. Money is yours, 50 the resources belong to the society. You have no 51 for wasting them.” Our face turned red. We all agreed with him in our 52 . My colleague took out a 50-euro note and repeatedly 53 to the officer. My colleague copied the fine ticket and gave a copy to each of us as a souvenir. We all 54 it to remind us that we should never be 55 .
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