用（）命令查询图形的信息包括图形所在图层、对象的类型及面积等信息。
参考答案：list
It is reported in the papers that the old coins _______under the earth for about 200 years by the time they were discovered.
A．had buried
B．had been buried
C．buried
D．were buried
一般用短虚线表示，描绘时也可不闭合的曲线是( )。
A．首曲线
B．计曲线
C．间曲线
D．助曲线
