排土场、转载台在遇有大风、（）和暴雨时，应暂停作业。
参考答案：大雾
Before her first Harry Potter came out in 1997，J.K.Rowling ________ English for a living in Portugal.
A．is teaching
B．had taught
C．has taught
D．would teach
在设计阶段，双击窗体Form1的空白处，打开代码窗口，显示( )事件过程模板。
A．Form_Click
B．Form_Load
C．Form1_Click
D．Foma1_Load
