
【名词&注释】
活塞环(piston ring)、公安消防(police fire protection)、爆炸品(explosive goods)、及时处理(timely treatment)
[单选题]每桶水中大约滴入多少2。5%的碘溶液后方可饮用:
A. 4滴
B. 6滴
C. 8滴
D. 10滴
查看答案&解析
举一反三:
[单选题]船舶遇险时可使用最先进的报警定位设备是()。
A. 卫星应急示位标
B. 应急发报机
C. 求救烟火信号
[单选题]对爆炸品撒漏的处理方法哪个正确:()
A. 对撒漏的物品及时处理(timely treatment)
B. 撒以锯木或以棉絮等松软物轻轻撒集
C. 通知公安消防处理
D. 以上都对
[单选题]脊髓位于______中,上端和脑相连,下端止于第一、二腰椎之内。
A. 椎管
B. 枕骨大孔
C. 颅腔
D. 胸腹腔
[单选题]承磨环磨损后,需在_______时更换
A. 更换活塞环
B. 更换缸套
C. 缸套有严重磨损
D. 修理活塞时
[单选题]The field coils _____and the armature _____. This is in fact the arrangement adopted for large, heavy duty alternators.
A. are stationary / rotates
B. are stationary /is stationary
C. rotate / is stationary
D. rotate / rotates
[单选题]During UMS rounds, a duty engineer notices that the fuel oil overflow observation glass is full of oil. Should he ____.
A. Stop all F.O. transfers immediately, and inform the chief engineer.
B. Make a sounding of the F.O. overflow tank and decide if there is enough capacity to leave it until the following morning.
C. Call a motorman and have him sound the F.O. overflow tank periodically during the night.
D. start the F.O. purifier
[单选题]呼吸次数减少至每分钟少于______,见于呼吸中枢受到抑制。
A. 10次
B. 12次
C. 14次
D. 16次
[单选题]________ were brought back to ship from the sea
A. The crew
B. The crew member
C. A person
D. The members
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