下列哪些事项是裁决书必须写明的( )
A．仲裁请求
B．争议事实
C．裁决理由
D．裁决结果
E．仲裁费用的负担 裁决日期
参考答案：A,D,E,F
—Your flight was quite late last night.
—Yes, it was midnight __________ our plane finally got to Jinan.
A．that
B．when
C．since
D．until
初次放顶期间合理确定采高，煤层厚度在1.2～2.5m，采高原则上（）回采。
A.跟顶丢底
B.跟底丢顶
C.丢顶丢底
D.跟顶跟底
