在杆塔上进行工作时，（）进入带电侧的横担，或在该侧横担上放置任何物体

A.允许

B.原则上允许

C.严禁

D.在监护下允许

Your fireman’s outfit includes a(n)（）.

A.chemical protection face shield

B.approved work vest

C.self-contained breathing apparatus

D.marlinspike