第26题: [单项选择]How many jobs have the man had A. The windows had been open. B. It’s windy outside. C. It’s cold. 参考答案:C 答案解析:M: Do you mind if I open the window F: I’m sorry, but I’m cold.
第27题: [单项选择]价格和需求量之间的函数关系是() A. 线性的 B. 非线性 C. 线性或非线性都可以 D. 都不对 参考答案:C