A、<span style=";font-family:宋体;font-size:14px">点击画圆，给定圆心，键盘输入<span style="font-family:Calibri">32</span></span></p><p></p>
B、<span style=";font-family:宋体;font-size:14px">点击画圆，给定圆心，键盘输入<span style="font-family:Calibri">64</span></span></p><p></p>
C、<span style=";font-family:宋体;font-size:14px">回车、空格或鼠标右键，重复圆，给定圆心，键盘输入<span style="font-family:Calibri">32</span></span></p><p></p>
D、<span style=";font-family:宋体;font-size:14px">回车、空格或鼠标右键，重复圆，给定圆心，回车、空格或鼠标右键</span></p><p></p>