架空配电线路中,为了使承受固定性不平衡荷载比较显著的电杆,如()达到受力平衡的目的,均应装设拉线。
A.终端杆
B.直线杆
C.转角杆
D.分支杆
参考答案:A, C, D
Devoted to their study , many high school students ______ little importance to sports.
A.spare
B.show
C.attach
D.allocate
我国在进行重大危险源的申报、普查工作中,将重大危险源分为()大类。
A.7
B.6
C.8