Section ⅠUse of English
Directions:
Read the following text.Choose the best word(s) for each numbered blank and mark A,B,C or D on ANSWER SHEET 1. (10 points)

　　Resources can be said to be scarce in both an absolute and a relative sense: the surface of the earth is finite, 1 absolute scarcity; but the scarcity that concerns economists is the relative scarcity of resources in different 2. Material used for one purpose cannot at the same time be used for other purposes; 3 the quantity of an input is limited, the increased use of it in one manufacturing 4 must cause it to become less available for other uses.
　　The cost of a product 5 money may not measure its true cost 6 society. The true cost of, say, the construction of a supersonic jet is the 7 of the schools and refrigerators that will never be built as a 8. Every act of production uses up some of society

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