(AB) stiff(AC) sniff(AD) germs (AE) scent(BC) roots(BD) demand(BE) rots (CD) diamonds 　　The truffle is the most expensive food in the world. The fungus, which looks like an ugly potato, is in such __69__ that in 2007, a Macao business owner paid over US$300,000 for a truffle that weighed 1.5 kilograms. Why is the truffle such a treasure? In addition to tasting great, truffles have an attractive __70__. They cost a lot because they are very hard to find. They grow in the wild, and unlike other mushrooms, they grow entirely underground on the __71__ of trees. Truffle-hunting pigs or dogs are used to __72__ them out. Pigs are the traditional choice of animal. However, the problem with pigs is that they sometimes eat the truffles they find. The best truffles are found in France and Italy. Every fall and winter, truffle hunters search woods for the “__73__ of the kitchen.” Once found, the truffles are sold around the world.
【題組】69