患者，10岁，上下牙弓中线不齐，其原因可能为 （） A.严重锁牙合 B.安氏Ⅱ类1

I will never forget the year when I was 12.My mother told us that we would not get Christmas gifts because there was not enough money .I felt sad and thought, ”What shall I say when the other kids ask me about my gifts?” I started to hope the Christmas wouldn’t come that year. Just then three women came to our house with gifts for all of us. For me，they brought a doll .I felt so happy.

Years later, my life changed a lot. So one Christmas, I wanted to do something special. I asked forty friends to help me. We visited 125 orphans(孤儿)to come to our Christmas party. For every child, we prepared a beautiful gift.

Finally the moment came. I called out,” One, two, three. Open your gifts!” As the children opened their boxes, the whole room was full of their bright smiles. The feeling I got from that Christmas so long ago came again.

小题1:___gave the writer a Christmas gift when she was 12.

A．Nobody

B．Her mother

C．Three women

D．An old man小题2:From the sentence “Years later, my life changed a lot.” we can guess that _____.

A．the writer didn’t get Christmas gifts any more.

B．the writer became rich.

C．the writer didn’t like Christmas gifts at all.

D．the writer hoped to help more orphans.小题3:The writer was so _____when she got a Christmas gift.

A．sad

B．bored

C．tired

D．happy小题4:Which of the following is WRONG according to the passage?

A．The writer’s family was very poor when she was a child.

B．The writer wanted to do something special for the old people at Christmas.

C．The three women taught the writer how to help others.

D．The writer and her friends invited 125 orphans to come to the Christmas party.小题5:What’s the best title for the passage?

A．A special Christmas

B．How to choose Christmas gifts.

C．Three kind women.

D．My first Christmas.

已合成出透明如玻璃、坚韧如钢的聚碳酸酯，可作防弹玻 璃、防暴警察的护身盾牌、宇航员头盔上的防护眼镜等。其中一种可由含活性氯原子的光气()和双酚()缩聚而成，其反应的化学方程式为__________________。

明明参加儿童歌曲大赛，6位评委的打分依次是89分、92分、90分、63分、88分、98分．

（1）这6位评委打的平均分是多少？（得数保留整数）

（2）如果去掉一个最高分和一个最低分再计算平均分，此时的平均分是多少？（得数保留整数）

创伤后机体有水钠潴留倾向的原因除外（）。

A.神经内分泌因素

B.创伤后细胞通透性改变

C.创伤后输入较多的液体和Na⁺

D.禁饮禁食

E.肾血流量减少

组织单位对竞赛活动优胜的项目进行表彰，授予（）