The Chief Mate must ascertain that the

1、The Chief Checker reminded the Chief O

The Chief Checker reminded the Chief Officer（）the dried turnips on top of the turpentine.Ato put notBnot to putCof puttingDof not putting

2、The first the Second Mate knew of the

The first the Second Mate knew of the fire was the sounding of the emergency alarm，which had been（）from the engine room.AactedBactivatedCactionedDenactioned

3、We must（）that the experiment is contro

We must（）that the experiment is controlled as rigidly as possible.AassureBsecureCensureDissue

4、Mariners must ascertain that deck load

Mariners must ascertain that deck loads are stowed in such a manner as（）.Ato affect the vessel's stabilityBnot to affect the vessel's stabilityCto keep the vessel on even keelDnot to keep the vessel on even keel

5、Master must ascertain that deck loads

Master must ascertain that deck loads are stowed in such a manner as（）.Anot to affect the vessel's stability and trimBto affect the vessel's stabilityCto affect the vessel's trimDto affect the vessel's atability or trim

6、The MOST important feature of the mate

The MOST important feature of the material used for making the binnacle of a standard magnetic compass is that it is（）.AnonmagneticBweatherproofCcorrosion resistantDcapable of being permanently affixed to the vessel