未知题型
单项选择题 如果一份肯德鸡的边际效用为3,一件金利来衬衫的边际效用为20,当二者的价格分别为15元和150元时,消费者的消费行为应该是( )。 A. 增加衬衫或减少肯德鸡的消费 B. 增加肯德鸡或减少衬衫的消费 C. 同时增加或减少二者的消费 D. 对二者的消费量不变
未知题型 In the sentence 'The manager interviewed Jim himself in the morning', the italicized work is used to modify______.A.the objectB.the verbC.the subjectD.the prepositional phrase
未知题型 John is up to his eyes in work at the moment. The underlined word means______.A.very excitedB.very busyC.very tiredD.very efficient