矩形RECTANG命令中用于绘制“三维”图形的选项是（）。

用矩形和正多边形命令绘制的矩形和正多边形都是一个单独的对象。

《建筑制图标准》规定，中心线、对称现、定位轴线用虚线绘制。（）

用矩形命令不能绘制( )图形。

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

用服装CAD系统辅助制图裁剪，并能提高成衣生产效率的制图方法是（）

CAD制图中“矩形”的快捷键为（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。