第29题: [单项选择]Fest-food restaurants are ______ to those who are too busy or too tired to cook dinner for the family. A. great helps B. a great help C. great help D. of a great help 参考答案:B 答案解析:该题考察抽象名词具体化,此处a help指一件有帮助的东西或事情。
第30题: [多项选择]骨肿瘤的治疗原则是() A. 早期诊断 B. 早期截肢 C. 早期放疗 D. 早期寻找原发灶 E. 早期化疗 参考答案:A, C, D, E