第4题: [单项选择]Where did the woman born A. She was born in Guangzhou. B. She was born in Shanghai. C. She was born in Beijing. 参考答案:A 答案解析:[听力原文] W: I’m from Shanghai. But I was born in Guangzhou. What about you M: I’m from Beijing.
第7题: [单项选择]在Visual FoxPro中,表RSDA已打开,并建立了bh.idx、xm.idx、zw.idx和gz.idx索引文件,这些索引的索引表达式分别是编号、姓名、职务和基本工资字段。执行SET INDEX TO bh,xm,zw,gz后,若再执行SET INDEX TO命令,则主索引文件为______。 A. bh B. xm C. zw D. 没有 参考答案:D 答案解析:[分析] 本题用SET INDEX TO命令打开的索引都是单一索引,打开后第一个文件bh是主索引文件。执行SET INDEX TO命令后,所有的单一索引文件全部被关闭,索引文件一旦关闭,当然也就不存在