单选题   Diamonds have little ______ value and their price depends almost entirely on their scarcity.
 
【正确答案】 D
【答案解析】钻石并没有什么内在的价值,它们的价格几乎全都取决于其稀缺性。 本题考查形容词辨析。extinct指物种“灭绝的”;permanent意为“永久的”;surplus意为“过剩的”;intrinsic意为 “内在的,本质的”,故选D。