当加油站油罐的容量低于所设定的安全库存或高于最大库存系统自动产生预警，站内也能够及时进行补货处理。
参考答案：对
--I failed the exam this time, I was quite worried.
-- you fall, pick something up. Learn from your mistakes so you don't repeat them.
A. No matter
B. As
C. Whenever
物质的唯一特性是它的（）。
A.运动的绝对性
B.存在性
C.客观实在性
D.实物性
