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11. A deadly disease has affected these animals. A. contagious B. serious C. fatal D. worrying 12.With immense relief, I stopped running. A. much B. enormous C. little D. extensive 13. Contact your doctor if the cough persists. A. insists B. perseveres C. continues D. resists 14.Because of the popularity of the region, it is advisable to book hotels in advance. A. possible B. profitable C. easy D. wise 15. We also want to use the water to irrigate barren desert land. A. hairless B. bare C. empty D. bald 答案： 11.答案选C.deadly是单义词， 其基本词义为致命的， 因此C是答案。 12.答案选B.immense的基本含义为极大的， 因此B是答案。 13.答案选C.persist 的基本含义为坚持， 持续。persist 在句子中充当条件状语从句中的谓语，主语是cough， 因此persist 在句子中的词义为持续， 因此C是答案。 | 
