煤矿水害防治的“十六字”原则是：预测预报，有疑必探，先探后掘，先治后采。
参考答案：对
________ of talking about the same problem over and over again, he suggested bringing the meeting to an end.
A．Tiring
B．Tired
C．Having tired
D．Tiring himself
因为特定情境引起的暂时的不安状态叫（）
A、暂时焦虑
B、特质焦虑
C、状态焦虑
D、人格焦虑
