徽商银行贷记卡通过银联在线进行支付时,需要提供以下哪些信息?()
A.卡号
B.卡片有效期
C.CVN2码
D.预留手机号
E.卡片交易密码
参考答案:A, B, C, D
After the adjustment of financial policies, many netizens put up posts, 90 percent ______ carried the
message of approval. [ ]
A. of which
B. of whom
C. of them
D. of what
下列哪个物质使酸性高锰酸钾溶液褪色()。
A.Zn2+
B.Cu2+
C.Fe2+
D.CO32-