(单选题)
In anchoring orders, up and down means().
Athe chain is not upright
Bthe chain is tight
Cthe chain is upright
Dthe chain is slack
正确答案
答案解析
略
相似试题
(单选题)
Dress up the ().
(单选题)
()up Maritime Declaration of Health.
(单选题)
Be careful()to mix them up.
(单选题)
在自动并车过程中,为获得合闸超前角需用鉴幅器和微分电路,若鉴幅器的动作电平为UP1,返回电平为UP2,则UP1与UP2的关系为(),鉴幅器输出的波形图为()。
(单选题)
Please choke up the drums to prevent().
(单选题)
In anchoring orders,UP AND DOWN means().
(单选题)
Please choke up the drums to prevent().
(单选题)
Static electricity may be built up by the().
(单选题)
Sailing directions are kept up to date by ().