组成牙本质主要的无机物为（）。 A.铁和锌 B.钙和磷 C.镁和钠 D.氟和氯 E. 发布时间：2017-06-11 22:57 │ 来源：www.tikuol.com 题型：单项选择题 问题： 组成牙本质主要的无机物为（）。A.铁和锌B.钙和磷C.镁和钠D.氟和氯E.碳和磷酸钙矿物质
题型：单项选择题 完形填空。 I came to India about ten years ago to find a village in which I could live and write. However, it wasmany months before I 1 down happily in this Himalayan village. I 2 alot oftimelooking for the 3 village. Yet no such thing exists. 4 were quite different. Butthe villages I stayed in had much in 5 -dirt,poverty, no 6 . Often the villagers themselves were 7 about why I had come. I had 8 my work as a political newspaperwriter 9 my ideas had changed. I had 10 to believe that what was happening in the 11 World was more important than anything else. But to understand how three quaqters ofthe 12 peoplelive,and how their 13 might affect ours,lfelt that I first had to try and 14 their way of life. 15 I chose a mountain village because it was a little 16 than those in the plains. I took the bus from town along a bumpy(崎岖) road. Then came a 17 down a steep path to the river. After that I began the climb into the hills. WheneverI stopped to 18 my breath, I saw a beautiful 19 . After several hours' walk the 20 came into sight.( )1. A. settled ( )2. A. spared ( )3. A. high ( )4. A. Clouds ( )5. A. surprise ( )6. A. education ( )7. A. disappointed ( )8. A. taken away ( )9. A. because ( )10. A. refused ( )11.A. Fourth ( )12.A. continent's ( )13. A. past ( )14. A. share ( )15. A. In fact ( )16. A. easier ( )17. A. walk ( )18. A. absorb ( )19. A. bird ( )20. A. house B. stayed B. took B. typical B. Houses B. particular B. food B. delighted B. put aside B. although B. decided B. First B. world's B. future B. change B. In the beginning B. warmer B. sail B. hold B. scene B. mountain C. lived C. wasted C. cold C. Roads C. reality C. air C. puzzled C. put down C. while C. come C. Second C. region's C. position C. adapt C. In other wordsC. cooler C. rest C. stop C. flower C. village D. wrote D. offered D. wet D. Conditions D. common D. furniture D. discouraged D. taken down D. before D. failed D. Third D. country's D. politics D. escape D. In the end D. noisier D. fall D. catch D. tree D. chimney 查看答案