The members in the Senate must be at l

1、It must never be forgotten（）the master

It must never be forgotten（）the master has no authority to take extraordinary measures for the cargo owner if the latter or his representative can be communicated with.AwhereBthatCwhichDwhether

2、The mariner must be the final judge of

The mariner must be the final judge of the reliance he can place on the information given in the Admiralty charts and other publications,since...

3、The cylinder and piston must be warmed

The cylinder and piston must be warmed up （） to a temperature of about 140 degF in standing by engine.ArepeatedlyBquicklyCgraduallyDimmediately

4、Care must be taken to condition the （）

Care must be taken to condition the （）in the boiler to prevent scaling, and corrosion, which can weaken the pressure vessel.AwaterBfuelCsteamDair

5、What must be theQ

What must be the same to make multiple switches part of the same Multiple Spannin...

6、The auxiliary steering gear must be ca

The auxiliary steering gear must be capable of being brought speedily into operation and be able to put the rudder over from 15 degrees on o...