患者，男，68岁，
缺失6个月要求固定义齿修复。为了使固定义齿能够充分发挥咀嚼功能，在设计时下列能成立的一项是（）。
A．恢复缺失牙的解剖形态与原天然牙一样
B．恢复缺失牙的解剖形态与基牙支持力相适当
C．恢复缺失牙的解剖形态大于原天然牙
D．恢复缺失牙的解剖形态为平尖牙
E．恢复缺失牙的解剖形态增大牙尖斜度，以增加机械便利
参考答案：B
解析：
采用固定义齿修复，恢复缺失牙的解剖形态应与基牙支持力相适当。
| 阅读理解。 | ||||||
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| 1. President Hu Jintao flew to Yushu, Qinghai _______, 2010. | ||||||
| A. on May 1 B. on June 11 C. on April 18 D. on July 12 | ||||||
| 2. President Hu Jintao comforted (安慰) _______ at a field hospital. | ||||||
| A. a middle school student B. a soldier C. a farmer of Yushu D. a doctor | ||||||
| 3. The 2010 World Expo in Shanghai will end on _______. | ||||||
| A. September 30 B. October 31 C. November 30 D. December 31 | ||||||
| 4. The theme of Expo 2010 is "_______". | ||||||
| A. Better City, Bright future. B. Better City, Good Environment. C. Better City, Better Life. D. Better City, Best Investment (投资). | ||||||
| 5. There will be _______ teams taking part in the 19th FIFA World Cup. | ||||||
| A. 10 B. 12 C. 13 D. 32 |
