某男性患者，52岁，缺失，近中部分缺损，诉曾有夜间痛史，有楔状缺损，舌侧骨尖，余留牙牙石(++)，氟斑牙。

修复前不急于处理的是

A:治疗 B:充填术 C:洁治 D:漂白 E:修整骨尖

某男性患者，52岁，缺失，近中部分缺损，诉曾有夜间痛史，有楔状缺损，舌侧骨尖，余留牙牙石(++)，氟斑牙。

为该患者选择基牙，应是

A: B: C: D: E:

某男性患者，缺失，缺失，拟行可摘局部义齿修复，设计RPI卡环，采用三臂卡环，舌杆大连接体连接

舌杆截面的正确形态应为

A:半梨状 B:泪珠状 C:半圆状 D:圆形 E:扁形

某男性患者，缺失，缺失，拟行可摘局部义齿修复，设计RPI卡环，采用三臂卡环，舌杆大连接体连接

下列哪项不属于杆状卡环的变体

A:U形 B:W形 C:T形 D:I形 E:L形

某男性患者，缺失，缺失，拟行可摘局部义齿修复，设计RPI卡环，采用三臂卡环，舌杆大连接体连接

选择后牙人工牙时，应该考虑的因素除了

A:颊舌径 B:近远中径 C:牙尖高度 D:人工牙强度 E:颌间距离

某男性患者，37岁，因釉质发育不良而颌面严重磨损。检查活髓牙，面广泛缺损，无龋坏，不松动，与对牙间有约1．0mm咬合间隙，邻接正常，余无特殊

拟为该患者进行高嵌体修复，牙体制备时下述哪一项是正确的

A:面均匀磨去0．5～1．0mm B:去除面过锐尖嵴 C:轴壁消除倒凹 D:龈边缘制作肩台 E:邻面制备出足够间隙

某男性患者，37岁，因釉质发育不良而颌面严重磨损。检查活髓牙，面广泛缺损，无龋坏，不松动，与对牙间有约1．0mm咬合间隙，邻接正常，余无特殊

该患者高嵌体修复时利用的主要固住方式是下述哪一项

A:环抱固位形 B:沟固位形 C:洞固位形 D:钉洞固位形 E:倒凹固位形

某男性患者，37岁，因釉质发育不良而颌面严重磨损。检查活髓牙，面广泛缺损，无龋坏，不松动，与对牙间有约1．0mm咬合间隙，邻接正常，余无特殊

如果该患者作高嵌体修复，钉洞固位形制备时下述哪一项是不正确的

A:一般需制备4个钉洞固位形 B:直径一般为1mm C:深度一般为2mm D:各钉洞之间应彼此平行 E:为避免损伤牙髓，钉洞应位于面的4个牙尖处

Across the Deserts

　　The SaharaDesertis the largest desert in the world. It stretches across Africa fromSenegaltoEgypt. TheSaharaDesertis an unfriendly environment. During the day it"s very hot, and at night it’s sometimes very cold. It is also difficult to find water in theSahara.

　　In 2006, Kevin Lin, Ray Zahab, and Charlie Engle decided to do something very difficult. They made the decision to run across the Sahara Desert 4,300 miles (6,920km). It seemed impossible to do, but they wanted to try. The three men liked to test themselves, and this would be a very big test.

　　On the morning of November 2, Kevin, Ray, and Charlie started their trip across theSahara. Every morning they began running at 5:00. At11 a.m. they stopped and rested until 5 p.m. Then they ran again until 9:30 in the evening. Each day they ran about 40 miles (64 km). Every day it was the same thing. They got up and ran. They listened to music on their iPods, and they ran and ran.

　　Kevin, Ray, and Charlie needed to eat a lot of food during their trip. Most people need about 2,000 calories of food each day. Kevin, Ray, and Charlie needed between 6,000 and 9,000 calories every day. That"s a lot of food! They also needed to drink a lot of water.

　　The three men had some problems on their trip, and many times they wanted to quit and go home. It was often very hot (140°F/60°C) during the day, and the heat made them sick. Their legs and feet hurt. Sometimes it was very windy, and they couldn"t see. One time they got lost. But they didn"t quit. After 111 days, Kevin, Ray; and Charlie successfully finished their trip across theSaharaDesert. They hugged each other and put their hands in the water of theRed Sea. Then they ran to a hotel to take a long shower.

　　词汇：

　　Stretch / strɛtʃ / v. 延伸，伸展

　　Calorie / "kælərɪ / n. 卡(路里)，小卡，大卡

　　Quit / kwɪt / v. 停止，放

　　注释：

In the middle of the day: the men usually stopped running.

A:Right B:Wrong C:mentioned

Across the Deserts

　　The SaharaDesertis the largest desert in the world. It stretches across Africa fromSenegaltoEgypt. TheSaharaDesertis an unfriendly environment. During the day it"s very hot, and at night it’s sometimes very cold. It is also difficult to find water in theSahara.

　　In 2006, Kevin Lin, Ray Zahab, and Charlie Engle decided to do something very difficult. They made the decision to run across the Sahara Desert 4,300 miles (6,920km). It seemed impossible to do, but they wanted to try. The three men liked to test themselves, and this would be a very big test.

　　On the morning of November 2, Kevin, Ray, and Charlie started their trip across theSahara. Every morning they began running at 5:00. At11 a.m. they stopped and rested until 5 p.m. Then they ran again until 9:30 in the evening. Each day they ran about 40 miles (64 km). Every day it was the same thing. They got up and ran. They listened to music on their iPods, and they ran and ran.

　　Kevin, Ray, and Charlie needed to eat a lot of food during their trip. Most people need about 2,000 calories of food each day. Kevin, Ray, and Charlie needed between 6,000 and 9,000 calories every day. That"s a lot of food! They also needed to drink a lot of water.

　　The three men had some problems on their trip, and many times they wanted to quit and go home. It was often very hot (140°F/60°C) during the day, and the heat made them sick. Their legs and feet hurt. Sometimes it was very windy, and they couldn"t see. One time they got lost. But they didn"t quit. After 111 days, Kevin, Ray; and Charlie successfully finished their trip across theSaharaDesert. They hugged each other and put their hands in the water of theRed Sea. Then they ran to a hotel to take a long shower.

　　词汇：

　　Stretch / strɛtʃ / v. 延伸，伸展

　　Calorie / "kælərɪ / n. 卡(路里)，小卡，大卡

　　Quit / kwɪt / v. 停止，放

　　注释：

They sometimes felt sick because it was so hot.

A:Right B:Wrong C:mentioned