下列选项中属于典型紧急事件的是( )。
A．电梯故障
B．浸水漏水
C．刑事案件
D．遭遇盗窃
E．噪声侵扰
参考答案：A,B,C,E
I wonder why Jenny ______ us recently. We should have heard from her by now. [ ]
A. hasn't written
B. doesn't write
C. won't write
D. hadn't written
电网调度管理的基本原则是（）调度，分级管理的原则。
