成品油输油站首站为解决油品输送过程中供多输少或供少输多不平衡的矛盾,解决该问题的手段主要靠()。
A、计量装置
B、清管器收发装置
C、油罐区
D、油品预处理装置
参考答案:D
In our childhood, we were often _______ by Grandma to pay attention to our table manners. [ ]
A. demanded
B. reminded
C. allowed
D. hoped
企业家是一种荣誉,一种职位或头衔。