题目

—Mike invited us to take part in the party this Sunday.—________  Is this Sunday his wedding anniversary(结婚纪念日)?A．Why not?B．That’s all right.C．What for?D．What a good idea! 答案：C解析:略下图是Zn和Cu形成的原电池，某实验兴趣小组做完实验后，在读书卡片上记录如下： 在卡片上，描述合理的是（    ）A．①②③B．③④⑤C．④⑤⑥D．②③④