试题与答案

等中心照射技术先决条件是()。 A.机架角准确 B.升床要准确 C.对准照射野 D.

题型:单项选择题

题目:

等中心照射技术先决条件是()。

A.机架角准确

B.升床要准确

C.对准照射野

D.楔形板大小准确

E.楔形板方向准确

答案:

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