Oil is an important（）material which can be processed into many different products, including plastics.
- Auncovered
- Braw
- Cfresh
- Dcrude
相关推荐
-
1、The longer an oil fire is permitted to
The longer an oil fire is permitted to burn, the （）.Aharder it is to extinguishBeasier it is to extinguishCless chance there is of re-ignitionDeasier it is to control
-
2、which function is the most important o
which function is the most important one of the GMDSS.（）AalertingBon-scene communicationCsafety informationDgeneral communicatio
-
3、Which of the materials listed is used
Which of the materials listed is used as the dynamic seal material on mechanical seals installed on most centrifugal pumps used in water service?（）ACopperBCopper and carbonCCarbonDBronze
-
4、When oil is discharged overboard，an en
When oil is discharged overboard，an entry is required in the（）.Aengine rough logBOil Record BookCOfficial LogbookDdeck rough log
-
5、Informal conversation is an important
Informal conversation is an important part of any business relationship. Before you start a discussion, however, make sure you understand which...
-
What is an important consideration that should be taken into account when configuring s...