问题
单项选择题 A1/A2型题
关于影像增强器结构功能的组合,错误的是()
A.入射窗--铝和钛金属制成
B.输出屏--碘化铯晶体膜
C.光电极--将荧光层的光信号转换成电子像
D.输出屏--形成可见光
E.集束电极--将光电子加速、聚集
答案
参考答案:B
关于影像增强器结构功能的组合,错误的是()
A.入射窗--铝和钛金属制成
B.输出屏--碘化铯晶体膜
C.光电极--将荧光层的光信号转换成电子像
D.输出屏--形成可见光
E.集束电极--将光电子加速、聚集
参考答案:B
根据对话的情景,从方框中选择适当的句子填在画线处,使对话完整通顺。 Jane: Tomorrow is Saturday. What do you often do on weekends? Bill: 小题1: What about you? Jane: I often go to the movies. Bill: 小题2: How often do you go to the movies? Jane: 小题3: Bill: What’s your favorite movie? Jane: 小题4: Bill: Who do you often go with? Jane: 小题5: Bill: Are you going there this weekend? Jane: Yes, do you want to go with us? Bill: Sorry, I have a lot of work to do.
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