第20题: [多项选择]微观经济学的主要理论有() A. 价格理论 B. 生产理论 C. 国民收入理论 D. 消费者行为理论 E. 失业理论 参考答案:A, B, D
第21题: [单项选择]According to Marina, a woman wishing to be a general builder A. must be specially trained B. should be strong enough C. can learn her job either from others or by experience D. must get used to doing a different sort or work 参考答案:D 答案解析:[解析] 本题考查对细节的掌握。根据倒数第二段最后一句话The important thing is to get used to doing a different sort of work,因此选