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Once there was something wrong with a machine in a factory. The workers could do nothing but turn to a German engineer for help， who drew a line on it and said， "Take off the part where the line is and change it for a new one."The machine， with a new line on， began running well again. The engineer then asked for $ 30，000 for what he had done. The following were what he wrote on a bill， "The new part only costs one dollar， and knowing where the problem with the machine is costs $ 29，999."
( )What can you conclude from this passage?
A. the engineer asked for too much money
B. the workers should pay the money
C. the knowledge is worth money
D. the new part could cost more
这篇短文是作者讲的一个故事，那么通过这个故事我们可以判断出什么呢?虽然作者没有言明，但是我们可以断定，发现问题的所在需要智慧和知识，知识是创造价值的源泉，因此此题的正确答案应为C。
三. 数据推算题
此题要求学生就文章提供的数据，以及数据与文中其他信息的关系做简单计算和推断。
Visit Swansea Zoo
Come and see the Indian elephants and the new tigers from America. The bears are waiting to meet you， and the monkeys from China are waiting to throw things at you. The lovely dogs from Australia are waiting to laugh at you， and the giraffes from Zambia are waiting to look down on you.
Tickets Opening time
Grown-ups: $ 3 9:00 am --- 4:00 pm
Children: Over 122 except Friday
Under 12: Free 10:00 am -- 3:00 pm
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