《安全质量标准化基本要求及评分方法》规定：露天煤矿在哪些情况下不准进行爆破作业？
参考答案：
夜间、大雾天、雷电雨天。
The English teacher told us this morning that we _____ an exam at the end of this month.
A．will have
B．would have
C．have had
D．had had
航行中值班轮机员若发现重要机件严重损坏，威胁主机安全，情况危急时可以采取（）。Ⅰ、先停车后报告驾驶台Ⅱ、先报告船长后停车Ⅲ、先报告轮机长后停车
A.Ⅰ
B.Ⅱ
C.Ⅰ+Ⅱ
D.Ⅱ+Ⅲ
