(2)降低建筑物电气装置接触电压的基本措施是( )。(Ⅰ:电气隔离;Ⅱ:接地;Ⅲ:总等电位连接;Ⅳ:屏敝)
A.Ⅰ、Ⅱ
B.Ⅱ、Ⅲ
C.Ⅲ、Ⅳ
D.Ⅰ、Ⅳ
参考答案:B
The job market has changed and our to finding work must change as well.
A.way
B.method
C.means
D.approach
车轮标记中的“D”或“HDSA”指的是()。