第6题: [单项选择]What did the woman do at lunchtime A. She tried to solve the problem. B. She had a chat with her classmate. C. She stayed at the classroom. D. She had lunch in the cafeteria. 参考答案:C 答案解析:[听力原文] M: Hi, Susan, Where were you at lunch time W: Oh, sorry to miss you. But my thirst for
第19题: [单项选择]下面关于表单数据环境和数据环境中的两个表之间关联的陈述中,正确的是 A. 数据环境是对象,关系不是对象 B. 数据环境不是对象,关系是对象 C. 数据环境是对象,关系是数据环境中的对象 D. 数据环境和关系都不是对象 参考答案:C 答案解析:[解析] 数据环境是表单对象,关系是数据环境中的对象。