第3题: [单项选择]What probably is the relationship between the two speakers A. Get directions to the bus station. B. Get to the grocery store. C. Give the man directions to the bus station. D. Find out where the stoplight is. 参考答案:A 答案解析:[听力原文] W: Could you please tell me how to get to the bus station here M: Go straight until yo
第21题: [单项选择]以下能够触发文本框Change事件的操作是______。 A. 文本框失去焦点 B. 文本框获得焦点 C. 设置文本框的焦点 D. 改变文本框的内容 参考答案:D 答案解析:[评析] 当用户向文本框中输入新信息,或当程序把Text属性设置为新值从而改变文本框的Text属性时,将触
发Challge事件.程序运行后,在文本框中每键入一个字符,就会引发一次Change事件。