进行臂架工作时间检测时，可以采取联动方式来缩短操作时间，保证达到标准。
参考答案：对
Though we __________serious natural disasters, we are sure to overcome all difficulties.
A．give away
B．affect with
C．suffer from
D．deal with
PowerPoint窗口中视图切换按钮有______。
A．3个 B．4个 C．5个 D．6个
