当发现暴雨洪水灾害严重可能引发淹井时，要先向调度室报告然后撤出作业人员到安全地点。（）
参考答案：错
When his dad died, he felt his world had turned upside - down. [ ]
A. in case
B. as if
C. so that
D. even though
资本输入国保护投资的法律措施有（）
A.政策声明
B.宪法规定
C.资本输入国与资本输出国签订的双边投资保护协定
D.资本输入国的专门立法
