绘软件STONE-Sign绘图区域的设置时通过（）对话框来确定尺寸。
A、色彩
B、修改控制
C、绘图区尺寸
D、图像定位
参考答案：C
试述在护理教学中如何应用强化的原则。
Despite the fact that it is still not fully understood, more and more farmers are _________ this modern technology of agriculture．
A．benefiting from
B．convincing of
C．suspecting of
D．protecting from
