第7题: [单项选择]Keep this reference book; it may come in ______ one day. A. handy B. useful C. convenient D. helpful 参考答案:A 答案解析:固定搭配题。come in handy意为“迟早会有用，派上用场”，例如：A few more traveller's cheques may come in handy on the holiday
第18题:[单选题]The use of wrong medicine may present a hazard to the patients. A.protection B.indication C.immunity D.danger 参考答案:D 本题考查的是对名词的认知。这句话的意思是：误用药物可能对病人造成危险。hazard的意思是危险，例如：He had put his own life in hazard．他是在拿自己的生命来冒险。选项A protection保护；选项B indication指示；选项C immunity免疫力；选项D danger 危险。hazard和danger意思最接近，所以选D。
