问题
单项选择题
以下关于牙颌面畸形的叙述哪项是错误的
A．牙颌面畸形患者必然存在错拾
B．正颌外科是以研究和诊治牙颌面畸形为：主要内容的学科
C．常见的颌骨发育畸形包括发育过度与发育不足两大类
D．畸形可以是对称的或不对一称的
E．错拾完全可以反映和代表牙颌面畸形基本的病变特征
答案
参考答案：E
搜题请搜索小程序“爱下问搜题”
以下关于牙颌面畸形的叙述哪项是错误的
A．牙颌面畸形患者必然存在错拾
B．正颌外科是以研究和诊治牙颌面畸形为：主要内容的学科
C．常见的颌骨发育畸形包括发育过度与发育不足两大类
D．畸形可以是对称的或不对一称的
E．错拾完全可以反映和代表牙颌面畸形基本的病变特征
参考答案：E
完形填空 从题中所给的A、B、C、D四个选项中选择能填入相应空白处的最佳答案。（10分） Save the Wild Tiger When people think of tigers, they think: strong and dangerous. But now, the big animal is calling for our help. There were once eight kinds of 1 in the world, but three died out during the 20th century. In the last 70 years, the 2 of Siberian tigers（东北虎）has gone from as many as 300 to_____3____22 somewhere The Siberian tiger has been___4____ dying out completely. If the government doesn’t make any efforts, it’s quite___5____ that there will be no more Siberian tigers in China in the to twenty years. In order to double the number of wild tigers in the __6___ ten years the World Wildlife Fund (世界自然基金会) has started a program recently It ___7___save wild tigers and put an end to tiger hunting and killing. China together with twelve other____8___, has joined in. Wild animals, such as red deer and wild pigs, are the main ____9____ of the tigers. The hunting of these animals is the greatest threat(威胁)to tigers. So the most important thing is ___10___ the animals that tigers eat. To protect the wild tigers, we need to call on more people to stop eating and hunting wild animals.
|