题目内容

在诊断早期骨转移时()

A. x线比核素骨显像早3—6个月
B. 核素骨显像比X线、CT早3—6个月
C. 核素骨显像与X线、CT都能早期诊断
D. CT、MRI比核素骨显像早3~6个月

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