患儿女，4个月，因“呼吸困难1d”来诊。近来流涕，今天始发热,咳嗽并呼吸困难。患儿系30周早产儿，出生时因“NRDS”使用呼吸机2周，后吸氧5周。查体：T39.5℃，HR190次/min，R64次/min，BP80/50mmHg；生长发育差，无水肿；呻吟；鼻翼扇动，三凹征，点头呼吸；四肢末端偏冷，CRT3s；双肺湿性啰音；腹软，肝肋下2cm，质软。SaO82%（吸入空气）；动脉血气分析（吸入空气）：pH7.20，PaO40mmHg，PaCO25mmHg，HCO17mmol/L。胸部X线片：双肺弥漫性渗出性病变。

根据上述动脉血气分析，患者存在(提示清理呼吸道,面罩吸氧（5L/min）后，再次做动脉血气分析：pH7.25，PaO50mmHg，PaCO36mmHg，HCO18mmol/L。)

A:代谢性碱中毒 B:代谢性酸中毒 C:I2型呼吸衰竭 D:I1型呼吸衰竭 E:呼吸性酸中毒 F:呼吸性碱中毒

患者男，40岁，驾驶员。近2年反复发作腰痛，近2个月疼痛放射至左足跟部。CT提示L~S椎间盘突出，突向左后方，压迫神经根，L~L椎间盘轻度膨出。

该患者应诊断为(提示L~S椎间盘突出，突向左后方，压迫神经根，L~L椎间盘轻度膨出。)

A:腰椎间盘突出症（L~S） B:腰椎管狭窄症 C:腰椎滑脱症 D:腰椎间盘突出症（L~S,L~L） E:腰椎间盘突出症（L~L）

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

甲车以加速度1m/s²由静止开始作匀加速直线运动，乙车落后2s在同一地点由静止出发，以加速度4m/s²作加速直线运动，两车运动方向一致，则乙车追上甲车所用的时间为（）

A:2s B:3s C:4s D:6s

MSC/VLR数字中继框有4个8位开关：S1、S2、S3、S4，其中S1和S2为一组，对应左半框，S3和S4为另外一组，对应右半框，假如MSC/VLR要从上级局（比如TMSC）提取时钟，并且连接它们的第一PCM系统是此中继框的8号GDTM板，那么（）应设为“ON”。

A:S1-8和S2-8 B:S1-0和S2-0 C:S3-0和S4-0 D:S3-8和S4-8

CuSO4溶液和Na2S溶液混合后的产物是（）。

A:Cu（OH）2↓+H2S↑+Na2SO4 B:CuS↓+Na2SO4 C:Cu↓+S↓+Na2SO4 D:以上答案都不对

电动机的工作制有S1、S2、…….S8共8中种，天车上只用（）一种

A:S2 B:S3 C:S4

两辆列车一前一后行驶，慢车在前，速度为V，快车在后，速度为2V，慢车在快车前4S千米，两车之间的安全距离为S千米。当快车距离慢车S千米时，慢车走了多少千米( )

A:2S B:4S C:3S D:5S

已有声明"char *s1="China",s2[10],*s3="Nanjing",*s4;",以下字符串赋值语句在执行时可能出现错误的是___(25)___。

A:strcpy(s3,s1); B:strcpy(s4,s1); C:strcpy(s2,s1); D:strcpy(s2,s3);