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TheHarryPotterbooksarequitepopular;theyareingreatinthiscity.[]A.quantityB.progressC.productionD.demand

题目详情
The Harry Potter books are quite popular; they are in great ________ in this city.
[     ]
A. quantity  
B. progress
C. production  
D. demand
▼优质解答
答案和解析
D

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