在3D中，对齐的快捷键是（）。
A、Alt+W
B、Alt+C
C、Alt+A
D、Alt+F
参考答案：C
The journey around the world took the old sailor nine months, ________ the sailing time was 226 days.[ ]
A. of which
B. during which
C. from which time
D. for which
机场地面探测设备
