以下关于三层浏览器/服务器(B/S)结构的数据库应用，说法错误的是______。
A．三层浏览器/服务器结构的数据库应用系统是一种互联网环境下的新型数据库应用系统结构
B．它将数据处理功能分解并分布在表示层、功能层两个层次上
C．表示层位于客户端，由Web浏览器实现
D．功能层位于Web应用服务器，实现面向具体应用领域的业务规则
参考答案：B
解析：三层浏览器/服务器结构的数据库应用系统是一种互联网环境下的新型数据库应用系统结构，它将数据处理功能分解并分布在表示层、功能层和数据层3个层次上，分别由Web浏览器、Web应用服务器和数据库服务器来实现。
Many years ago when the world was a simpler place there lived a shoemaker. He used __16__ silk and soft leather(皮革) to make the greatest shoes. Colorful shoes lined the shelves of his store. One little girl, Rachel, often looked through the _17__ into the store. One day while Rachel was looking again, the shoemaker __18__ at her side. “Well, dear, which shoes would you take?” he said, smiling. Rachel was __19__ as she hadn’t noticed the little man. “Oh! I …I was just __20__,” Rachel said. “I can’t afford them and I would never take anything that doesn't belong to me.” The shoemaker said, “I meant to give you a pair as a(n) __21__ .” Rachel stared at the shoemaker. A small pointed(尖尖的) ear could be seen underneath(在…底下) his hat. The guy __22__ Rachel’s curious gaze(凝视) and fixed his hat tightly over his ear _23__. “Why don't you wear a pair of your own beautiful shoes?” Rachel questioned him, smiling. “I am always working and have no need of __24__ shoes,” he explained. Rachel’s smile __25__. “I have no need of good shoes either,” Rachel said in a sad voice and limped (一瘸一拐地走) away. A few days later, Rachel was walking past the shoe shop when the shoemaker waved her into the shop. Looking around, Rachel said, “You have every color of the rainbow here.” The shoemaker said, “They are the colors of the rainbow, Rachel.” __26__ a drawer(抽屉), he took out the most beautiful pair of shoes Rachel had ever seen. The shoemaker placed the shoes onto her feet. “Take a __27__, Rachel,” he said. “I …I can’t,” Rachel said with a tear. “Yes, Rachel, you can,” the shoemaker __28__. Rachel stood up staight. Deliberately(小心翼翼地) she took a __29__, followed by another and another. “I can do it. I can do it,” she said, walking easily across the floor, not limping at all. The shoemaker laughed __30__ and said, “I told you they were magic shoes…”
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