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题目：
选择题
阿苯达唑的化学命名为
- A. [5-(Methylthio)-1H-benfimidazo-2-y1]carbamic acid methyl ester
- B. [5-(Propylthio)-1H-benzimidazo-2-y1]carbarnic acid methyl ester
- C. [5-(Ethylthio)-1H-benzimidazo-2-y1]carbamic acid methyl ester
- D. [5-Benzoyl-lH-benzimidam-2-y1]carbamic acid methyl ester
答案：
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