阴极极化
参考答案:
通过电流时阴极电位向负方向移动的现象
23. The day ______ she spent with us was never to be forgotten.
A.when
B.on which
C.that
D.in which
以下平台不属于出口跨境电商的是()。
A.敦煌网
B.阿里巴巴国际站
C.易趣网
D.亚马逊