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[originaltext]Economics and weather have a lot in common. Knowing what conditio
[originaltext]Economics and weather have a lot in common. Knowing what conditio
游客
2024-02-18
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问题
Economics and weather have a lot in common. Knowing what conditions will be like weeks or months in the future is not easy. One thing that helps economists predict the future is the index of leading economic indicators.
An index is a way to measure changes in a group of numbers over time. In financial markets, for example, an index of stocks will rise or fall with changes in the wider market. The changes measured by an index can be represented with a single percentage. The index may start at a base period of time with a value of one hundred. Now say that a month later the value is recorded as one hundred one. That means it gained one percent. If the index lost one percent, however, the value would be ninety nine.
The leading economic indicators are really ten indexes. Four deal with manufacturing activity. One deals with unemployment claims, Another measures people’s expectations of the economy. Still others involve financial information like the money supply and interest rates. The index of leading indicators is just one of the tools used to measure the business cycle. A measure called the coincident index provides information about current conditions. Employment rates are an important part of it. There is also a lagging index. It helps confirm economic changes that currently appear to be taking place. Interest rates are an important lagging indicator.
Why is economics comparable to weather according to the passage?
选项
A、Because economics is as irregular as weather.
B、Because economics is as important as weather to our daily life.
C、Because economics condition can be judged according to weather.
D、Because it is not easy to predict the future condition of economics.
答案
D
解析
本题问“根据短文,为什么经济和天气具有可比性?”短文开头即指出,Economics and weather have a lot in common. Knowing what conditions will be like weeks or months in the future is not easy. 由此可见,未来一段时间经济情况的变化和天气的变化一样,都是很难预测的,这是经济和天气的共同之处。据此可以断定[D]“因为我们很难预测经济的未来状况”正确。
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