搜题请搜索小程序“爱下问搜题”
问题 单项选择题

以下不属于专用书信的（）。

A.通报表扬

B.倡议书

C.求职信

D.邀请函

答案

参考答案：A

改错题
此题要求改正所给短文中的错误，每行都有一处错。按下列情况改正：
该行多一个词：把多余的词用斜线(＼)划掉，在该行右边番号后面横线上写出该词，并也用斜线划掉。
该行缺一个词：在缺词处加一个漏字符号(∧)，在该行右边番号后面横线上写出该加的词。
该行错一个词；在错词下划一根线，在该行右边番号后面横线上写出改正后的词。   
注意：请按要求规范答题，否则不予给分。
Today, roller-skating is easy and fun, and a long time
小题1:           
ago, it isn’t easy at all. The idea of skating didn’t exist
小题2:           
until 1750.It changed because a man named Merlin.
小题3:          
One day Merlin received an invitation to attending a party.
小题4:          
She was very pleased and excited. As the day of the party
小题5:           
came nearly, Merlin began to think how to make a
小题6:           
special show at the party. He had the idea. He thought he
小题7:          
would get a lot of attentions if he could skate into the room.
小题8:          
On the night of the party Merlin had rolled into the room
小题9:          
playing his violin. Everyone was surprising to see him.
小题10:          
查看答案
单项选择题

（18-21题共用题干）　　女，19岁，体健。查：左下7颊侧偏近中距龈缘5mm处探及瘘管，探之溢血，左下67无牙体病，冷热诊同正常牙，无食物嵌塞，叩（-），松动（-），左下67近远中牙周探诊深度为5mm，探及龈下牙石；X线示左下67牙槽嵴有少许吸收，根尖周未见明显异常。

.首次治疗措施为

A．口服抗生素

B．左下67龈上下洁治，根面平整

C．左下7开髓引流

D．左下7根管治疗

E．左下67牙袋冲洗，上碘甘油
查看答案