机械制图国家标准规定汉字应该书写成（）。
A、草体
B、长仿宋体
C、楷体
D、黑体
参考答案：B
--- Excuse me, sir. Would you do me a favor?
--- Of course. What is it?
--- I _____ if you could tell me how to fill out this form.
A．had wondered
B．was wondering
C．would wonder
D．did wonder
《土地法》禁止任何单位和个人闲置、荒芜( )。
A．荒地
B．耕地
C．劣地
D．好地
