---Dead slow ahead! ----Dead slow ahead! _______________
A.Engine dead slow ahead!
B.Engine dead ahead slow!
C.Engine slow dead ahead!
D.I do it right now
We usually shrug ___________ the words we are really glad to hear.A. ofB. aroundC. offD. ahead
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The dog looked ( ), but its weak breath suggested that it ( ) still ( ).A、died/ was/ livingB、died/ was/ aliveC、dead/ was/ aliveD、dead/ be/ living
---How many revolutions? ---________________.A.Slow aheadB.EightyC.Thirty minutesD.Slow
_____ to the lighthouse!A.HeadingB.HeadC.ForwardD.Ahead
（72）A.forwardB.reverseC.backwardD.ahead
A head-on situation at night is one in which you see dead ahead a vessel showing ______.A.one sidelightB.one sidelight and a masthead lightC.one sidelight and two masthead lightsD.both sidelights of a vessel and her masthead light(s)
In a twin screw ship going half-ahead,both screws turning outboard and the rudder amidships no current or wind, the vessel will ______.A.Move bodily to portB.Move bodily to starboardC.Move in a zig-zag motionD.Steer a fairly straight course
