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【单选题】
在哪一种情况下,底片的有效评定范围会超出搭接标记以外()
A.
环缝双壁透照,搭接标记放在胶片侧;
B.
环缝单壁外透法,搭接标记放在胶片侧;
C.
纵缝单壁外透法,搭接标记放在侧;
D.
环缝中心透照法搭接标记放在胶片侧。
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