某地99年GDP为1392亿元，若按年均增长9%的速度发展，GDP翻一番所_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

某地99年GDP为1392亿元，若按年均增长9%的速度发展，GDP翻一番所需时间是（）。

A.11.11年以后

B.8.04年以后

C.11.11年以内

D.8.04年以内

答案

参考答案：B

改错题

     I went out to see a film with my brother after sup-
per. On our way to the cinema, we meet an American
girl named Alice, she had got lost and looked very
anxious. We went up to see that was the matter. We
then took him to the hotel. While going there, I
told her the great changes that had been taken place
in our country in the past few years, and Alice tell
us a lot about youth in America.
     Although we missed .the film, but we felt very hap-
for we had not only helped Alice get out of troubles
but also known something about the States. We see Eng-
lish can strength understanding and friendship.

1. ______
2. ______
3. ______
4. ______
5. ______
6. ______
7. ______
8. ______
9. ______

10.______

单项选择题

下列哪一项不是乳牙拔出适应证（）

A.牙冠破坏严重，无法修复的乳牙

B.替换期，牙根吸收1/2以上，不能做根管治疗者

C.根尖周炎症侵及恒牙胚，或恒牙牙根已形成3/4或恒牙胚顶端牙槽骨消失

D.外伤不能保留的乳牙

E.Ⅱ度松动的牙齿