题目

Jaguar （美洲虎）is an endangered animal. It is said that there are less than 20 jaguars in the world currently, one of which is living in the national zoo of Peru. To protect this jaguar, Peruvians ____16____ a zone in the zoo for it, where there are groups of cattle, sheep and deer for the jaguar to eat. Anyone who has visited the zoo ____17____ it to be the “Heaven of Tiger”. ___18___, strange enough, no one has ever seen the jaguar ___19___the animals. What we could see is it’s lying in its house sleeping and eating the meat ____20____by the zoo staff. Some people thoug9．5X=8Y，那么X：Y=8：5，如果X等于1.6，那么Y=1．