全口义齿排牙完成后，发现下颌牙列的尖牙和第一前磨牙之间有台阶，造成这一现象的原因是（ 发布时间：2018-04-13 19:22 │ 来源：www.tikuol.com 题型：单项选择题 问题： 全口义齿排牙完成后，发现下颌牙列的尖牙和第一前磨牙之间有台阶，造成这一现象的原因是（）A．上前牙排列过高B．上后牙排列过高C．前牙浅覆D．前牙深覆E．下前牙排列过低
题型：单项选择题 用方框中所给单词的适当形式填空，使短文通顺、正确、连贯。why, because, so, I, with, work, its, invite, but, bad, tell, invent,Dear Joyce, You must be very busy these days. I called you several times, 1 no one answered. Are you still busy 2 on the report? I called you because I am having problems with Mom and my friends these days. You know, I am a shy person.That's 3 I have few friends. Last month, some of my classmates 4 me to the Internet café after school. It was a lot of fun 5 we could play the latest online games there, and it was the first time that I felt I was not alone anymore. However, my grades were getting 6 than ever before, and Mom found out the reason. She got really angry with 7 ! She wouldn't even let me go out with my friends again,so I had to 8 them that I couldn't go out with them any more. My friends laughed at me and even called me a coward (胆小鬼). I couldn't stand 9 , so I went to the Internet café 10 them like before. Mom is really disappointed with me now. I didn't mean to make her sad, but I still want to have my own friends. What should I do? Last, Mom and I miss you a lot. We hope to hear from you soon. Your brother, Ben 查看答案
