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!

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将颜色板上的颜色与当前对象填充色按接近10%的比例进行混合，应该按住什么键的情况下用左键单击颜色板中的颜色？（）

A、Alt键

B、Ctrl键

C、Shift键

D、Tab键