第12题: [单项选择]以下叙述中错误的是()。 A. Visual Basic是事件驱动型可视化编程工具 B. Visual Basic应用程序不具有明显的开始和结束语句 C. Visual Basic工具箱中的所有控件都具有宽度(Width)和高度(Height)属性(计时器) D. Visual Basic中控件的某些属性只能在运行时设置 参考答案:C
第17题: [单项选择]Passage OneWhen did watches and clocks become common in the United States A. From the 1850s. B. From the 1700s. C. From the 1800s. D. From the 1900s. 参考答案:A 答案解析:[听力原文] 26-28 Watches and clocks seem as much a part of our life as breathing or eating.And ye