【单选题】【消耗次数：1】
受体激动剂的特点是（）。
①
A.与受体有亲和力有内在活性
②
B.与受体有亲和力无内在活性
③
C.与受体无亲和力有内在活性
④
D.与受体有亲和力有弱的内在活性
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相关题目
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甲药对某受体有亲和力，但无内在活性；乙药对该受体有亲和力，又有内在活性，则
①
甲药为激动剂，乙药为激动剂
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甲药为拮抗剂，乙药为拮抗剂
【单选题】
甲药对某受体有亲和力，但无内在活性;乙药对该受体有亲和力，又有内在活性，则
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药物与受体亲和力大，用药剂量小
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药物与受体亲和力大，用药剂量大
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下列有关亲和力的描述，正确的是
①
亲和力是药物与受体结合后引起效应的能力
②
亲和力是药物与受体结合的能力
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at times
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time before time
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did she return
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