若正多边形的一个外角是45°，则该正多边形的边数是______．

Hi, I’m Nick. I am very busy from Monday to Friday. In the morning, I always get up and take a shower at six ten. After half an hour, I have breakfast. After I finish eating, I get dressed and go to school by bike. It takes me about twenty minutes to get to school.

After school, I go to the English club. Because my English is not very good, I join the English club at school. The students in the club get together to practice speaking English at half past five. We can talk in English and we can tell English stories in the club. It is good for us to improve our English.

小题1:When does Nick have breakfast?

A．At 5:45.

B．At 6:10.

C．At 6:40.

D．At 7:00.小题2:How does Nick get to school?

A．By bus.

B．By bike.

C．By subway.

D．By train.小题3:What do students get together to do?

A．To talk with each other.

B．To do homework.

C．To practice English.

D．To listen to the stories.小题4:Which is TRUE according to the passage?

A．It takes Nick about thirty minutes to get to school.

B．Nick’s English is good.

C．The students in club can’t tell English stories.

D．Nick thinks the English club is good.

某个基因的转录模板链（）。

A．是编码链

B．是正链DNA

C．是DNA双螺旋中的任意一条链

D．与编码链（正链DNA ）互补

E． 其碱基序列代表该基因序列

精神分析理论认为神经症最基本的核心症状是

A．焦虑 

B．强迫 

C．恐惧 

D．抑郁 

E．神精衰弱 

某项目总投资为1000万元，其中贷款300万元，项目建设期为2年，第一年贷款100万元，第二年贷款200万元，贷款分年度均衡发放。建设期内年利率10%，则建设期贷款利息为（）万元。

A．20.25

B．15

C．25.5

D．25

中国人民解放军内务建设，要严格按照军队条令条例统一内务建设和规范军人行为，实施科学管理，建立正规秩序，增强军队的组织性、计划性、（）、纪律性，保持军队高度集中统一和安全稳定。

A、准确性

B、统筹性质

C、稳定性

D、目的性