某男性患者，51岁，
．缺失，5年前曾在诊所行
单端固定桥修复，现诉：
松动疼痛检查，锤造开面冠，作为单端固定桥的固位体。开面冠边缘与颈缘有间隙。牙龈区红肿，探诊易出血。Ⅰ～Ⅱ度松动，叩(+)。
松动的主要原因
A:制作不当 B:设计不当 C:固位体与基牙不密合 D:
牙龈炎的表现 E:
牙髓炎的表现
某男性患者，51岁，．缺失，5年前曾在诊所行单端固定桥修复，现诉：松动疼痛检查，锤造开面冠，作为单端固定桥的固位体。开面冠边缘与颈缘有间隙。牙龈区红肿，探诊易出血。Ⅰ～Ⅱ度松动，叩(+)。
对该患者的正确处理是
A:局部上药后，观察 B:全身用药后，观察 C:拆除固定桥，对
进行治疗 D:
面开髓，对其进行治疗 E:以上均可
某男性患者，51岁，．缺失，5年前曾在诊所行单端固定桥修复，现诉：松动疼痛检查，锤造开面冠，作为单端固定桥的固位体。开面冠边缘与颈缘有间隙。牙龈区红肿，探诊易出血。Ⅰ～Ⅱ度松动，叩(+)。
若经治疗后，Ⅰ度松动。最佳固定义齿修复方案是
A:
固定桥 B:
固定桥 C:
单端固定桥 D:
固定桥 E:
堕单端固定桥
某男性患者，59岁，
缺失，余留牙均健康
可摘局部义齿修复，基牙应该选择
A:
B:
C:
D:
E:
某男性患者，18岁，反复发作心悸5年。食管心房调搏检查记录到图4-7-8和图4-7-9。 
图4-7-8中的电生理现象提示
A:魏登斯基现象 B:裂隙现象 C:文氏现象 D:房室结双径路现象 E:超常传导
某女性患者，67岁，因病态窦房结综合征植入AAI起搏器5年。近1周来反复出现头晕、乏力、黑朦。活动时动态心电图记录如图4-8-14所示。 
图4-8-14提示
A:起搏器故障 B:电极导线断裂 C:磁铁试验 D:肌电干扰 E:起搏器介导的心动过速
某女性患者，57岁，因房室传导阻滞植入起搏器。图4-8-17A为植入起搏器后3个月复查的心电图，图4-8-17B为植入起搏器后6个月复查的心电图。 
图4-8-17A提示
A:右心房起搏 B:右心室起搏 C:左心房起搏 D:左心室起搏 E:双腔起搏
某女性患者，57岁，因房室传导阻滞植入起搏器。图4-8-17A为植入起搏器后3个月复查的心电图，图4-8-17B为植入起搏器后6个月复查的心电图。
图4-8-17B提示
A:右心房起搏 B:右心室起搏 C:左心房起搏 D:左心室起搏 E:双腔起搏
某男性患者，66岁，因口腔修复体无法使用前来就诊。临床检查：口腔内
铸造金属桥不良修复体，冠固位体完全不密合，修复体有松动，基牙可探及有龋坏。口内上颌
，下颌
天然牙存留，牙冠牙体形态尚正常，均叩（-），松（-），咬合空间正常。口腔卫生较差，部分天然牙体探及龈下牙石。拆除口内不良修复体后，发现口内
缺失，
牙冠缺损，牙体龋坏明显，均叩（-），松（-）；
残根，
松动Ⅰ度，
松动Ⅰ～Ⅱ度，根面腐质多；
残根于龈上约2mm，叩（-），松（-）；口内可见部分残根区牙龈充血明显，有较多牙结石。患者身体健康，无心脏病、高血压等病史。
X线检查发现
残根均较短小，根管较细小；根长度较长，且根管直径正常；上颌
牙体破坏，龋坏及髓腔，根尖周影像正常，根管影清晰。结合临床检查结果，确定需要拔除的牙齿为
A:
B:
C:
D:
E:
F:
G:
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：
1. ... made the decision to run across ...：......决正跑步横跨......In the middle of the day: the men usually stopped running.
A:Right B:Wrong C:mentioned
单项选择
