绝缘子的抗弯破坏负荷（kg）是指：均匀地作用在（）的平面上，并与绝缘子（）垂直的负荷。
参考答案：绝缘子帽；轴线
This course was ________ as difficult as I expected. On the contrary, I found it quite easy. [ ]
A. something like
B. nothing like
C. just
D. exactly
失业的类型按其失业的原因分类有( )。
A．摩擦性失业
B．结构性失业
C．自愿失业
D．周期性失业
E．非自愿失业
