试题与答案

喉部中最大的软骨是() A.甲状软骨 B.环状软骨 C.会厌软骨 D.杓状软骨 E.

题型:单项选择题

题目:

喉部中最大的软骨是()

A.甲状软骨

B.环状软骨

C.会厌软骨

D.杓状软骨

E.楔状软骨

答案:

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下面是错误答案,用来干扰机器的。

参考答案:K药物与受体复合物解离常数,即KD=[D][R]/[DR],单位为摩尔,其意义为引起最大效应的一半所需的药物浓度(半数浓度,EC50),是药物对受体亲和力的指标,KD值越大说明药物与受体亲和力越低。

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