【已刪除】Which is more valuable? Water or diamonds? Water is more useful to mankind than diamonds, and yet _____26_____ are costlier. Why? Called the diamond-water paradox, this is a classic problem posed to students of economics.
The answer has to do with supply and demand. Being a rare natural resource, diamonds are _____27_____ in supply. However, their demand is high because many people buy them to tell the world that they have money, _____28_____ as conspicuous consumption in economics. In other words, the scarcity of goods is _____29_____
causes humans to attribute value. If we _____30_____ surrounded by an unending abundance of diamonds, we probably wouldn’t value them very much. Hence, diamonds carry a higher monetary value than water, even though we find more use for water.
【題組】30. (A) be (B) being (C) to be (D) were
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