AccordingtotheCodeofFederalRegulations，onvesselsotherthanriverferryboatsandrivervessels，howareperiodiclifeboatweighttestsrequiredtobeconducted?（）
A. Thelifeboatisloweredtonearthewater，loadedwiththeallowedcapacity，loweredintothewateruntilafloat，thenreleasedfromthefalls
B. Thelifeboatisloadedwiththeallowedcapacity，loweredintothewateruntilafloat，thenreleasedfromthefalls
C. Thelifeboatisloweredintothewateruntilafloat，loadedwiththeallowedcapacity，thenreleasedfromthefalls
D. Thelifeboatisloweredtonearthewater，loadedwiththeallowedcapacity，thenreleasedfromthefalls
Allinflatableliferaftshave（）.
A. safetystrapsfromtheoverhead
B. builtinseats
C. releasinghooksateachend
D. waterstabilizingpockets
事前的信息不对称使得一些优质客户被拒之门外，即经济学中的（）。
A. 道德风险
B. 操作风险
C. 逆向选择
D. 信用风险
Generally，whenliftinganinflatableliferaftbackaboardshipyouwouldusethe（）.
A. towingbridle
B. mainweathercover
C. externallifelines
D. rightingstrap
微信支付 
支付宝支付