The minimum number and capacity of bilge pumps and fire pumps and their distributing within the ship is governed by ().
A. Classification Society Rules
B. National requirements
C. The IMO International Convention for the Safety of Life at Sea
D. All of the above
合同补充协议中规定乙方需承担物业费不含本专柜区域的电费、空调费、柜台内设施维修费。
A. 正确
B. 错误
一般情况下关井,最大允许关井套压不得超过井口装置额定工作压力、套管抗内压强度的80%和薄弱地层的()所允许的关井套压值三者中最小值。
A. 地层坍塌压力
B. 上覆岩层压力
C. 地层压力
D. 地层破裂压力