题目内容：
下列药物哪种为COX-2特异性抑制剂
A．双氯氛酸钠 B．对乙酰氨基酚
C．美洛昔康
D．塞来昔布
E．萘丁美酮
参考答案：
答案解析：
单选题：下列药物哪种为COX-2特异性抑制剂
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B．对乙酰氨基酚
C．美洛昔康
D．塞来昔布
E．萘丁美酮
B．对乙酰氨基酚
C．美洛昔康
D．塞来昔布
E．萘丁美酮
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