一个非零实数的平方根式3a+1和a+11,求这个数及它的立方根.

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问题:

一个非零实数的平方根式3a+1和a+11,求这个数及它的立方根.

考点:平方根立方根
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同种异型移植排斥反应的防治措施包括哪些?

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女,66岁,手关节痛伴晨僵3年。查体:双手近端和远端指间关节压痛,无软组织肿胀,远端指间关节变形,可见多个heberden结节。化验:ESR22mm/h,类风湿因子22U/L(正常),抗CCP抗体阴性。X线片示远端指间关节半脱位。最可能的诊断是()。患者类风湿因子正常,可排除选项B,其临床表现符合骨关节炎,且Heberden结节多见于骨关节炎。

A.强直性脊柱炎

B.类风湿关节炎

C.风湿性关节炎

D.银屑病关节炎

E.骨关节炎

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A lot of grown-ups worry that spending too much time playing video games isn’t good for a kid’s health. Now some doctors have noticed that kids who bring their hand-held game players to the hospital seem less worried about being there. These patients also seem to experience less pain when they are concentrating on a superhero adventure or a car race. At the Johns Hopkins Children’s Center in Maryland, young patients are finding hospital visits easier to deal with, thanks to a test program called the Hospital-based On-line Pediatric Environment (HOPE). Patients in HOPE have a life-threatening condition where their kidneys(肾脏)no longer filter(过滤)wastes from their blood. To get their blood cleaned, these kids must be hooked up to dialysis(透析) machines at the hospital three times a week, for at least three hours each time. HOPE allows kids to play online sports, racing, and adventure games with each other. Eventually they will be able to connect with kids in other hospitals who are suffering from the same problem. "We want to use the power of the Internet to bring together kids who feel that they are separated by their illness, and let them know that they are not alone," said Arun Mathews, the doctor who heads the program. He loves video games himself and got the idea to connect kids all over the country. Many researchers elsewhere are testing video game programs that might help young patients. For example, nine-year-old Ben Duskin of San Francisco, who was struggling with cancer helped to design a video game where players get rid of cancer cells. That’s all great news, because doctors already know that reducing pain and worry helps patients heal faster.

小题1:What’s the main idea of the passage?

A.Playing video games too much is bad for kids’health.

B.Playing video games seems to be beneficial to young patients’ recovery.

C.Doctors find that reducing pain helps patients recover faster.

D.Doctors invent a game to help kids in hospitals.小题2:How long will it take a patient to get his blood cleaned in a week?

A.About 3 hours.

B.About 6 hours.

C.About 9 hours.

D.About 21 hours.小题3:According to Arun Mathews, the main purpose of HOPE is to _________.

A.encourage kids to play online games

B.teach kids how to design video games

C.help kids who are suffering from illness connect with each other

D.make parents worry less about their kids playing video games too much小题4:Which of the following plays the most important role in the HOPE project?

A.Music.

B.The Internet.

C.Novels.

D.Films.小题5:What can we learn from the passage?

A.Nine-year-old Ben Duskin, who has a cancer, is very brave and clever.

B.Many parents want their children to play video games because it’s good for their health.

C.Doctors are not sure whether reducing pain and worry can help the patients recover faster.

D.HOPE allows kids to play online games only with the kids in the same hospital.

题型:解答题

女婴,1岁,体重10 kg,生后母乳喂养,8个月始添加辅食,因不能站立而就诊。查体:精神好,面色稍苍白,消瘦,腹部皮下脂肪厚度为0.3 cm,肌肉松弛,可能的诊断为

A.正常儿

B.佝偻病儿

C.Ⅰ度营养不良

D.Ⅱ度营养不良

E.Ⅲ度营养不良

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一个用于销售和应收账款的在线数据库管理系统最近得到扩展,可以包括信用卡批准交易。在实施前没有对控制进行评价。

为了防止对特定数据元素的非授权访问,数据库管理系统应该包含下面()项控制。

A.物理终端上的签字验证安全

B.每个数据文件或元素的密码规范

C.使用生产数据库来定期测试系统

D.使用终端安全来代替每个数据元素或文件的密码

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