路径与选区如何进行互换?
参考答案:
路径生成选区:CTRL+ENTER选区生成路径:在选区上单击右键,从弹出的快捷菜单中选择“建立工作路径”即可
Yao Ming _______ in NBA since 2002. [ ]
A. is
B. was
C. has been
D. will be
简述手工铺砂法测定抗滑性能的过程。