柔性排架桩墩，其主要特点是，可以通过（）措施将上部结构传来的水平力传递到全桥的各个柔性墩台或相邻的刚性墩台上，以减少单个柔性墩所受的水平力。
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Thebasictraininginfirepreventionandfirefightingshouldincludethepracticalelementswhichshouldallowthetraineestoacquiretheabilityto（）.
A. useself-containedbreathingapparatus
B. usevarioustypesofportablefireextinguishers
C. effectarescueinasmoke-filledspacewearingbreathingapparatus
D. Alloftheabove
WhichstatementisTRUEconcerningtheventilationofengineandfueltankcompartmentsonuninspectedtowingvesselsusingfuelwithaflashpointof100°F?（）
A. Thereshallbeatleast3ventilatorductsopentotheatmosphere
B. Atleastoneexhaustductshallextendfromtheopenatmospheretothelowerportionofthebilge
C. Atleastoneintakeductshallextendfromtheopenatmospheretothelowerportionofthebilge
D. Onlyvesselsusingfuelwithaflashpointabove110°Fneedventilateengineandfuelcompartments
（）登记簿登记内容统一在“工作日志”中进行登记。
A. 应急业务登记簿
B. 会计差错登记簿
C. 检查人员工作记录
D. 查询查复登记簿
Themaincausesoffireonboardshipsare（）
A. oilleakageinengine-room
B. hotwork(welding,cutting,etc)
C. staticelectricity
D. alloftheabove
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