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组胺H1受体拮抗剂的结构类型有A.
胺类
B.
氨基醚类
C.
氨基酮类
D.
丙胺类
E.
哌嗪类
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举一反三
【简答题】A．That the man rethink their plans. B．That the man see a family doctor. C．That the man see a psychiatrist. D．That the man concentrate on his studies.
【简答题】要查找所有第一个字母为A且扩展名为wav的文件,应输入()
【简答题】要查找所有第一个字母为A 且扩展名为WAV 的文件,应输入 。
【简答题】A．That the British would attack by sea. B．That the British were retreating. C．That the British were willing to sign a treaty. D．That the British had won the first battle.
【简答题】a≠b≠c,α=β=γ=90°的晶体1属于什么晶系?a≠b≠c,α≠β≠γ≠90°的晶体2属于什么晶系?能否据此确定这两种晶体的布拉菲点阵
【简答题】A．That the man rethink their plans. B．That the man see a family doctor. C．That the man see a psychiatrist. D．That the man concentrate on his studies.
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