题目内容
33、_____, the disease diphtheria will produce a powder poison that will kill the patient.
A. If it untreated B. If is untreated
C. If being untreated D. If untreated
试题答案
33、D
相关题目
_____, the disease diphtheria will produce a powder poison that will kill the patient.
A. If it untreated B. If is untreated
C. If being untreated D. If untreated
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