题目

A.The film is wonderful. B.She nearly missed the film.C.She doesn't like the film. D.She was late for the film. 答案：【答案】A【解析】【原文】W: I'm home, Dad.M: You've come back early, Lucy. Isn't the film good?W: Yes, very nice. You really can't miss it.Q: What does Lucy mean?（A）图为X射线管的结构示意图，E为灯丝电源，要使射线管发出X射线，须在K、A两电极加上几万伏的直流高压。             （    ）        A．高压电源正极应接在P点，X射线从K极发出        B．高压电源正极应接在P点，X射线从A极发出        C．高压电源正极应接在Q点，X射线从K极发出        D．高压电源正极应接在Q点，X射线从A极发出