简述进出油短管结构特点及作用?
参考答案:
进出油短管在罐底圈板上,其外侧与进出油管道上的罐根阀相连,内侧大多设成呈45°角坡口朝上形式,以利导出静电。
It is said that Columbus Day is _____ the arrival of Christopher Columbus in the New World in the USA. [ ]
A. in honor of
B. for the honor of
C. in favor of
D. in place of
良性高血压病患者,长期不愈后,该病人全身血管出现的主要病变是
A.大动脉硬化
B.中等动脉硬化
C.小动脉粘液样变
D.细动脉玻璃样变
E.细动脉脂质沉积