目前世界上许多国家已经消除了脊髓灰质炎，我国属于下列哪一种情况( )A．沿未流行B 发布时间：2018-01-06 10:23 │ 来源：www.tikuol.com 题型：单项选择题 问题： 目前世界上许多国家已经消除了脊髓灰质炎，我国属于下列哪一种情况( )A．沿未流行B．正在消除C．部分消除D．基本消除E．已经消除
题型：单项选择题 患者女，45岁，右上第一磨牙近中大面积银汞充填，近中邻间隙食物嵌塞，要求修复如果此牙为死髓牙，牙冠缺损3/4，未行根管治疗术，牙周情况良好，则最佳的治疗方案是A．全冠修复B．根管治疗后全冠修复C．根管治疗后银汞充填加全冠修复D．根管治疗后嵌体修复E．根管治疗后铸造桩核加全冠修复 查看答案
题型：单项选择题 完形填空。 The Voice of America began during the World War ?, when Germany was broadcasting a radio program to get international 1 . American officials believed they should 2 the German broadcast with words that they thought were the facts of world events. The first VOA news report began withwords in 3 . "The 4 may be good or bad, but we shall tell you the truth." Within a week, other VOA 5 were broadcasting in Italian, French and English. After the World War ? ended in 1945, some Americans felt VOA's 6 had to be changed, 7 the Soviet Union (苏联) became enemy of America. They wanted to 8 Soviet listeners. Then VOA began broadcasting in Russian. In the early days VOA began adding something new to its Broadcast that was 9 "Music USA". Another new idea came along in 1959. VOA knew that many listeners did not know 10 English tocompletely understand its 11 English broadcast. So VOA 12 a simpler kind of English, 13 usesabout 1,500 words and is spoken 14 . Of course, it is special English. In the 15 of most VOA listeners, the most 16 program is the news report. News from aroundthe world 17 into the VOA newsroom in Washington 24 hours a day. It comes from VOA reporters in 18 cities and also from other 19 like BBC. VOA writers and editors use these materials to 20 news reports, which are being broadcast in 43 languages.( )1. A. business ( )2. A. reply ( )3. A. time ( )4. A. news ( )5. A. programs ( )6. A. home ( )7. A. if ( )8. A. reach ( )9. A. known ( )10. A. poor ( )11. A. normal ( )12. A. stopped ( )13. A. it ( )14. A. slowly ( )15. A. please ( )16. A. difficult ( )17. A. past ( )18. A. all ( )19. A. broadcasts( )20. A. broadcast B. culture B. answer B. short B. problems B. news B. position B. consideringB. satisfy B. reported B. excellent B. fast B. discovered B. which B. rapidly B. course B. important B. send B. major B. forms B. announce C. support C. join C. English C. effects C. announcersC. purpose C. supposing C. attack C. called C. standard C. good C. taught C. who C. normally C. opinion C. various C. deliver C. American C. newspaper C. translate D. information D. interrupt D. German D. opinions D. officials D. result D. in order that D. support D. printed D. enough D. exact D. invented D. that D. loudly D. advice D. common D. fly D. news D. countries D. prepare 查看答案