针孔准直器的特点A.缩小准直器与器官的距离,图像可放大B.缩小准直器与器官的距离,图像可缩小C.增加准直器与器官的距离,图像可放大D.增加准直...

作者: rantiku 人气: - 评论: 0
问题 针孔准直器的特点
选项 A.缩小准直器与器官的距离,图像可放大 B.缩小准直器与器官的距离,图像可缩小 C.增加准直器与器官的距离,图像可放大 D.增加准直器与器官的距离,图像大小不变 E.图像大小与准直器距离无关
答案 A
解析 :针孔准直器适合较小器官的显像,缩小准直器与器官的距离,图像可以放大。

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