某男，31岁。反复中上腹疼痛10多年，解柏油样便3天伴头晕、乏力、心悸住院。急诊胃镜检查为十二指肠球后溃疡伴活动性出血。化验：RBC2．8×10^12／L，Hb 63 g／L ，白细胞11．2×10^9／L，血小板110×10^9／L，网织红细胞0．02(2％)。

［假设信息］假如铁剂治疗2个月以上，血红蛋白仍没恢复正常，其最不可能原因是

A:患者未按医嘱服药 B:铁剂失效 C:出血未控制，丢失铁超过补充铁 D:有腹泻或肠蠕动过速，影响铁剂吸收 E:同时存在溶血性贫血

某男性患者，39岁，缺失，近远中大面积银汞合金充填物，无松动，X线显示已行完善的根管治疗；未见明显的牙体牙髓及牙周病变

如果患者要求固定义齿修复，但5牙冠剩余牙体薄弱，最佳的处理措施是

A:烤瓷固定桥 B:烤瓷固定桥 C:行桩核恢复后，烤瓷固定桥 D:金属固定桥 E:行桩核恢复后，金属固定桥

患者，缺失，无第三磨牙，上下颌均为游离端缺牙，下颌缺牙区的牙槽嵴吸收严重呈窄条状，拟行可摘局部义齿修复

下列哪一项不属于远中游离端义齿的排牙要求

A:排牙时要平分颌间距离 B:参考余留前牙超覆大小、排成相适应的曲线 C:人工牙尽可能地要排在牙槽嵴顶 D:排成正常的超覆关系 E:排成对刃关系

某女性患者，26岁，发现左颈部结节一周。查体：左叶甲状腺下极可触及一约2cm×2.5cm结节，质地中等，活动，无压痛。血清甲状腺激素水平正常，TcO甲状腺静态显像示左叶甲状腺下极一"凉"结节。

术后病理提示左叶甲状腺下极乳头状癌，继之行甲状腺激素及I治疗。下列最适合应用F-FDGPET／CT进行随访的是

A:I全身显像阳性者 B:Tg水平升高，I全身显像阳性 C:Tg水平正常，I全身显像阴性 D:Tg水平升高，I全身显像阴性 E:以上均是

某男性患者，65岁。发热伴右上腹钝痛2天，恶心，食欲下降、乏力。继往有糖尿病史。查体：T39.4℃，右下胸及肝区叩击痛，右上腹肌紧张及触痛。X线胸腹部检查示：肝影增大伴局限性隆起，右膈肌上抬。F-FDGPET示肝右叶放射性分布局灶性异常浓聚，SUVave5.7，SUVmax8.6。

有关F-FDGPET临床作用的说法，不正确的是

A:炎症的严重程度与局部F-FDG的浓聚程度具有一定的相关性 B:特异性鉴别肝细菌性脓肿与肝细胞癌 C:炎症病灶摄取F-FDG的量受患者血糖水平的影响 D:F-FDG炎症显像有助于临床急性炎症的快速诊断 E:应用于临床的炎症谱广，各种炎症病灶大多可灵敏摄取F-FDG

某男性患者，16岁，右膝X线平片和CT检查见下图。

病变发生部位是

A:骨端 B:干骺端 C:骨骺 D:骨干 E:关节腔

某男性患者，16岁，右膝X线平片和CT检查见下图。

对于此病变的征象，描述不正确的是

A:右胫骨内侧平台近关节面下不规则溶骨性破坏 B:边缘可见硬化缘 C:病灶内可见多发细小点状钙化 D:可见骨膜反应 E:病变为偏心性生长

某男性患者，16岁，右膝X线平片和CT检查见下图。

根据此病灶内部多发钙化，对其定性诊断的提示是

A:良性 B:骨源性 C:软骨源性 D:纤维源性 E:恶性

某男性患者，16岁，右膝X线平片和CT检查见下图。

此病变最可能的诊断是

A:骨巨细胞瘤 B:内生软骨瘤 C:骨结核 D:成软骨细胞瘤 E:软骨黏液样纤维瘤

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