问题 单项选择题 配伍题

1周()

A.固定修复的最佳时机是拔牙后

B.前牙创伤牙折伴牙周膜撕裂伤,根管治疗后到桩冠修复时需时

C.上颌种植修复时最佳时间是拔牙后

D.进行可摘义齿修复至少应在拔牙后

E.下颌种植修复的最佳时间是在拔牙后

答案

参考答案:B

解析:4.一般拔牙3个月后,伤口可以形成良好的愈合,牙槽嵴吸收趋于稳定可以开始进行修复;外伤性牙折伴牙周膜挤压伤或撕裂伤者,可能有尖周反应,根管治疗后应至少观察1周;种植条件较严,以上颌切牙为例,拔牙后一般需4~6个月,待牙槽窝骨愈合完成,才可种植,且牙槽基部骨质不得少于8mm。

选择题
阅读理解

阅读理解。

     It was Molly's job to hand her father his brown paper lunch bag each morning before he headed off to

work.

     One morning, in addition to his usual lunch bag, Molly handed him a second paper bag. This one was

worn and held together with staples (书钉).

     "Why two bags?" Her father asked. "The other is something else," Molly answered.

     "What's in it?" "Just some stuff (东西). Take it with you."

     Not wanting to discuss the matter, he put both sacks into his briefcase, kissed Molly and rushed off.

At midday he opened Molly's bag and took out the contents: two hair ribbons, three small stones, a plastic

dinosaur, a tiny sea shell, a small doll, and 13 pennies…The busy father smiled, finished eating, and swept

the desk clean into the wastebasket, Molly's stuff included.

     That evening, Molly ran up behind him as he read the paper. "Where's my bag?" "What bag?" "The one I

gave you this morning." "I left it at the office. Why?" "I forgot to put this note in it," she said. "And, besides,

Daddy, the things in the sack are the things I really like. I thought you might like to play with them. You didn't

lose the bag, did you, Daddy?" "Oh, no," he said, lying. "I just forgot to bring it home. I'll bring it tomorrow."

While Molly hugged her father's neck, he unfolded the note that read:"I love you, Daddy." Molly had given him

her treasures-all that a 7-year-old held dear.

     Love in a paper bag, and he missed it-not only missed it, but had thrown it in the wastebasket. So back he

went to the office. Just ahead of the night Janitor (看门人), he picked up the bag from the wastebasket. He

put the treasure inside and carried it home carefully. The bag didn't look so good, but the stuff was all there

and that's what counted.

     After dinner, he asked Molly to tell him about the stuff in the sack. It took a long time to tell. Everything

had a story or a memory.

     "Sometimes I think of all the great times in this sweet life," he thought.

     We should all remember that it's not the destination that counts in life, but the journey. That journey with

the people we love is all that really matters. It is such a simple truth but it is so easily forgotten.

1. Why did Molly give her father a second bag? [ ]

A. She didn't want to keep the things in the bag.

B. She hoped those things would bring happiness to her father.

C. She wanted to remind her father of the stories behind the things.

D. She enjoyed playing with her father.

2. How did Father deal with the bag after he opened it? [ ]

A. He kept it in the drawer.

B. He took it back home.

C. He threw it into the wastebasket.

D. He put it on his table.

3. After Father heard what his daughter said, he felt _____. [ ]

A. regretful

B. surprised

C. sad

D. satisfied

4. Which of the following is the most suitable title of the passage? [ ]

A. An Important Journey

B. Two Bags

C. Father and Daughter

D. Love in a Paper Bag