Generally，whenliftinganinflatableliferaftbackaboardshipyouwouldusethe（）.
A. towingbridle
B. mainweathercover
C. externallifelines
D. rightingstrap
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Ifyouareforcedtoabandonshipinalifeboat，youshould（）.
A. remainintheimmediatevicinity
B. headforthenearestland
C. headfortheclosestsea-lanes
D. voteonwhattodo，soallhandswillhaveapartinthedecision
关于windows7中的“命令提示符”方式，正确的说法是（）。
A. 开机后，可以直接进入“命令提示符”的安全模式
B. 通过“开始”按钮中的“程序/附件”菜单可以进入“命令提示符”方式
C. 用“Exit“命令，可从命令提示符方式回到windows环境
D. 要进入windows的命令提示符方式，必须在安装wondows之前，安装Ms—Dos
Onopenlifeboats，thepurposeofthewirestretchedbetweenthedavitheadsisto（）.
A. keepthemovementofthedavitsatthesamespeed
B. keepthedavitsfromslippingwhentheyareinthestowedposition
C. preventvibrationduringloweringoftheboat
D. supportthemanropes
Priortoloweringthelifeboat，themostimportantitemtocheckisthe（）.
A. oars
B. sail
C. boatplug
D. lifepreservers
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