单项选择题
7.胸部X线摄片最佳曝光时机为 A.
呼气顶点 B.
吸气顶点 C.
呼气低点. D.
吸气低点. E.
吸气中点
7.胸部X线摄片最佳曝光时机为 A.
呼气顶点 B.
吸气顶点 C.
呼气低点. D.
吸气低点. E.
吸气中点
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单项选择题
In the picture below, who puts baby Perseus and his mother in a wooden barrel and throws it into the sea?
In the picture below, who puts baby Perseus and his mother in a wooden barrel and throws it into the sea?
A.Polydectes
B.Zeus
C.Acrisius
D.Dictys