轿厢安全门或轿厢安全窗如果锁紧失效，该装置应使电梯停止。只有在重新锁紧后，电梯才有可能恢复运行。（）
参考答案：对
Everybody likes to work with is reliable and easy to get along with.
A．who
B．whom
C．whomever
D．whoever
规定回收的采区煤柱，可作为独立块段进行损失率计算。
