题目

When we talk about intelligence, we do not mean the ability to get good scores in certain kinds of tests or even the ability to do well in school. By intelligence we mean a way of living and behaving, especially in a new or anxious situation. If we want to test intelligence, we need to find out how a person acts instead of how much he knows what to do. For example, when in a new situation, an intelligent person thinks about the situation, not about himself or what might happen to him. He tries to find out all he can, and then he acts immediately and tries to do something about it. He 学校乐队要做8个圆柱形队鼓，队鼓底面半径是3分米，高是2.5分米，上下底面蒙的是羊皮，侧面由铝皮围成，做这些鼓至少需要铝皮多少平方分米？羊皮呢？（接头忽略不计）