牺牲阳极与钢铁相连时,()首先失去电子。
A、钢铁
B、牺牲阳极
C、导线
D、填包料
参考答案:B
I do not usually celebrate my birthdays until I met him. _______, I do not like any big party because I’m not good at small talk.
A.On the whole
B.On average
C.In addition
D.In other words
可发生于____的任何部位,包括来自____、____、____的压迫。