题目

Why is the man going to New York?A.To work there. B.To visit a friend. C.To have a vacation. 答案：【答案】A【解析】【原文】W: Are you going to New York to visit a friend or have a vacation?M: Neither. I've got a new job there.W: We'll miss you. 如右图所示,电流计G发生偏转,同时A极逐渐变粗,B极逐渐变细,C为电解质溶液。则A、B、C为　(　　) A.A是Zn,B是Cu,C是稀硫酸 B.A是Cu,B是Zn,C是稀硫酸 C.A是Fe,B是Ag,C是稀AgNO3溶液 D.A是Ag,B是Fe,C是稀AgNO3溶液