问题
单项选择题
下列对亲和力指数(pD2)的描述哪项有错：
A．pD2值与亲和力呈正比
B．与KD的关系为pD2=-lgKD
C．用pD2表示亲和力时可不用摩尔单位
D．pD2表示药物与受体的亲和力大小
E．用pD2表示亲和力时用摩尔单位，与亲和力呈反比
答案
参考答案：E
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下列对亲和力指数(pD2)的描述哪项有错：
A．pD2值与亲和力呈正比
B．与KD的关系为pD2=-lgKD
C．用pD2表示亲和力时可不用摩尔单位
D．pD2表示药物与受体的亲和力大小
E．用pD2表示亲和力时用摩尔单位，与亲和力呈反比
参考答案：E
| 补全对话，从方框中所给的选项中选择正确的句子补全对话。 | |
B: 1______ What's wrong with you? A: 2______ B: Do you have a cough? A: 3______ I cough now and then. B: How long have you been like this? A: 4______ And I'm feeling terrible now. B: Let me check you over. Oh, you have a fever, too. A: Is it serious? B: Nothing serious. Take this medicine and drink more water. A: 5______ B: Three times a day. Have a good rest and you'll be all right soon. A: Thanks a lot. B: Not at all. |