阅读下面的短文，在短文的空格内填入适当的词，使其内容通顺。

About three years ago, I felt very lonely. I didn’t like my classmates, my parents or anyone else. My classmates didn’t want to talk with me and my parents were always saying that other kids were better than me. I thought I was the   小题1:  unlucky(不幸运的) person in the world.

One day I had a big fight with one of my classmates. I was so angry that I hit him in the face. Just at that moment, a boy stood up and stopped the fight. He was the monitor(班长) of our class.

After that, he often helped me and we became good   小题2: . Whenever I got angry or sad, he would help   小题3: to cool down(冷静). My life began to change because of the boy, my best friend. We   小题4:  a lot of time on interesting days together. As time goes by, I have become happier with people and things. And it seems that people around me have changed, too. My parents don’t shout at me any more. And my classmates become friendly to me.

But now I can’t often see my best friend小题5:he is seriously ill and is staying in hospital. How I miss the days when we were together! I hope he will be all right and come back to school soon.

CT最早用于颅脑检查，对颅脑疾病具有很高诊断价值，适用于颅脑外伤、脑血管意外、脑肿瘤、新生儿缺氧缺血性脑病、颅内炎症、脑实质变性、脑萎缩、术后和放疗后复查以及先天性颅脑畸形等。扫描基线有听眦线、听眉线和听眶线。颅脑增强扫描分为平扫后增强扫描和直接增强扫描两种方法。平扫后增强扫描是在平扫基础上加做的增强扫描。直接增强扫描是注入对比剂后的逐层连续扫描。

关于颅脑冠状位扫描技术的描述，错误的是

A．患者体位有颌顶位和顶颌位
B．颌顶位，听眦线与台面趋于平行
C．顶颌位，正中矢状面与台面中线垂直
D．层厚与层间距，视被检部位的大小选择3～5mm
E．头皮下软组织病变，首选冠状位扫描