区域差异的过程与机制？

写作。

         一年一度的班长竞选又开始了.下面是Jack的竞选海报,请你根据海报内容决定是否选举他作为班长,并陈述

你的理由.要求:语句通顺；语法正确；60词左右.

                                                          Vote for Jack

     If I am class president, I will love the job, care about my classmates, and serve them better.

     If I am class president, I will be glad to help any student in our class. I will try my best to help him or her with his

or her studies or life.

     If I am class president, I will help teachers keep the school rules and solve some problems in class.

     If I am class president, I would like to hold some interesting after-class activities for my classmates on weekends.

     I hope everybody can vote for me!

_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

The boy felt so blue yesterday, because he didn’t pass the exam.

A．funny

B．pleased

C．unhappy

D．satisfied

库房管理员根据（）的内容确定是否收回被更换专用设备，并办理更换专用设备的出库。

A、《问题报告单》

B、《防伪税控开票子系统安装单》

C、《专用设备更换单》

D、《防伪税控开票子系统维护单》

煤气中毒后心跳存在，呼吸衰竭的病人，可以用口对口法抢救。

教师劳动的效果必须表现为一种社会效果，要经过一段较长的时间后由学生的德、才水平和实践能力表现出来。