已知y=log4(2x+3－x2). (1)求定义域；(2)求f(x)的单调区间

补全对话(共5分)

(根据对话内容,从对话后的选项中选出能填入空白处的最佳答案)

John: Oh, hi, Fred! 小题1:  Why are you so late?

Fred: 小题2: She always keeps us in class until ten past ten.

John: Doesn't she know that you're supposed to get out at ten?

Fred:小题3: But she never looks at her watch. She just keeps talking.

John: Don't the students complain about it? 小题4: 

Fred: No. 小题5:

John: Well, you could try and talk to her.

Fred: Maybe.

A．They don't think so.

B．I didn't know whether to save you a place or not.

C．Everybody is too polite.

D．I guess so.E. Mary had a talk with me.

F. It's our maths teacher.

G. I would say something.

首选大环内酯类抗生素治疗的是

A．干酪性肺炎

B．肺炎球菌肺炎

C．葡萄球菌肺炎

D．肺炎支原体肺炎

E．克雷白杆菌肺炎

血瘀可表现为哪些性质的疼痛()

A．固定痛

B．走窜痛

C．刺痛

D．隐痛

E．夜痛甚

注重提高咨询服务质量，要求做到( )。

A．切实增强质量意识

B．制定质量标准和规范

C．推动质量管理体系建设

D．建立健全质量责任制

E．实施“走出去”战略

行政合理性原则产生的主要原因是( )。

A．行政行为应符合立法动机

B．行政行为必须符合社会公共利益的需要

C．合法性原则的补充

D．行政自由裁量权的存在