在施工中发生危及人身安全的紧急情况时，作业人员有权立即停止作业或者在采取必要的应急措施后撤离危险区域。
参考答案：对
Which of the following statements about forward and future contracts is FALSE（）
A. A future requires the contract purchaser to receive delivery of the good at a specified time.
B. The future value of a financial derivative depends on the value of its underlying asset.
C. The primary difference between forwards and futures is that only futures are considered financial derivatives.
经精度评定，洪水预报方案精度达到（）者，可用于参考性预报。
A.甲级
B.乙级
C.丙级
D.丙级以下
