问题
单项选择题
根管充填应达到的标准为
A．超填
B．恰填
C．欠填
D．糊剂超填
E．牙胶尖欠填
答案
参考答案：B
解析：根管充填应达到的标准为恰填，即根管充填材料刚好填满根尖狭窄部以上的三维空间。X片上见充填物距牙的根尖部约0.5～1.0mm处。超填和糊剂超填都会引起一定的根尖周组织反应。欠填和牙胶尖欠填都会影响根管治疗的疗效。
搜题请搜索小程序“爱下问搜题”
根管充填应达到的标准为
A．超填
B．恰填
C．欠填
D．糊剂超填
E．牙胶尖欠填
参考答案：B
解析：根管充填应达到的标准为恰填，即根管充填材料刚好填满根尖狭窄部以上的三维空间。X片上见充填物距牙的根尖部约0.5～1.0mm处。超填和糊剂超填都会引起一定的根尖周组织反应。欠填和牙胶尖欠填都会影响根管治疗的疗效。
| 完形填空。 |
| Summer is coming. Junior 3 students are going to say 1 to each other. 2 , each student would buy a big beautiful notebook (笔记本) and ask their classmates 3 in it. But this year, things 4 a bit difficult. Some Junior 3 students 5 floppy disks (软盘) instead of notebooks. 6 the help of a computer, students write, draw or even make flashes (动画) for each other. "I am not 7 at Chinese. I don't have 8 beautiful words to say to show how 9 I love my friends," said Zhang Shoukun, 16, girl. "Now I can make short flashes for 10 . It's a really cool thing to do!" In her flash, Zhang made her classmates' 11 show one by one, with beautiful music. 12 some students still like notebooks better. "Words in computer are 13 . I like to keep my classmates' handwriting (书法)." Said Tong Jie, 16, girl. "I have a good friend. His handwriting is just like 14 . Every time I saw his handwriting in the notebook. I would 15 him!" Which way you choose to say goodbye to your dear classmates? |
| ( ) 1. A. hello ( ) 2. A. In the past ( ) 3. A. write ( ) 4. A. am ( ) 5. A. use ( ) 6. A. For ( ) 7. A. weak ( ) 8. A. any ( ) 9. A. deeply ( )10.A. him ( )11.A. books ( )12.A. But ( )13.A. hot ( )14.A. a girl ( )15.A. talk with | B. Goodbye B. In the day B. to write B. is B. play B. In B. good B. some B. deep B. it B. pictures B. And B. cold B. girls B. point at | C. sorry C. In the future C. writing C. are C. copy C. With C. well C. no C. deeper C. them C. desks C. Or C. warm C. a girl's C. think of |