A tank has been sealed and unventilated for a long period of timeWhich of the following conditions does this indicate?（）
1、She has been working hard day and nig
She has been working hard day and night during these years（）she could pay for the lost necklace.Ain order thatBas long asCthe momentDbecause
A customer has been working with your company to purchase an iDataPlex cluster. They...
3、Before entering a fuel tank that has b
Before entering a fuel tank that has been cleaned, it should be checked with an oxygen indicator and a/an（）.AOrsat apparatusBflame safety lampCHalide torchDcombustible gas indicator
4、My vessel has been in collision and（）h
My vessel has been in collision and（）help.AadviseBneedsChopesDinform
A customer has been receiving warning alerts on their storage units. All data is ...
6、Your vessel has been damaged and is ta
Your vessel has been damaged and is taking on water，but you do not require immediate assistance. You would preface a message advising other v...