We watched the plane（）behind the cloud

1、If the gas pressure behind the ring is

If the gas pressure behind the ring is built up too slowly, and thereby exerts an inadequate outward pressureIn such a case, the combustion g...

2、Can people smoke in the plane?

Can people smoke in the plane?AN0，they can’t．BYes，but only in some areas of the place．CYes，but only in the cabin．DIt is not mentioned in the announcement．

3、The officer of the watch should（）compl

The officer of the watch should（）comply with the collision rules.Asome timesBoftenCat all timesDseldom

4、The watches and the the camera materia

The watches and the the camera materials were not stowed in the poop cabin. They were stowed in the chief officer’s cabin（）.AinsteadBinstead ofCreplaceDreplace of

5、What is the principle behind dynamic b

What is the principle behind dynamic braking as used on an anchor windlass?（）AElectrical loadingBMechanical distributionCCompressibility of airDMechanical frictio

6、The officer of the watch should use ra

The officer of the watch should use radar when appropriate and at all times in（）waters.AcongestingBcongestedCcongestionDcongest