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什么是矿物质的生物有效性，影响矿物质的生物有效性的因素有哪些？

答案

参考答案：矿物质的生物有效性也称矿物质的生物利用率，是指食品中矿物质被机体吸收、利用的比例。

影响因素：

化学形式、颗粒大小、食品组成、食品加工、生理因素

单项选择题 A3/A4型题

女性，50岁。因尿毒症行肾移植术，术后肾功能延迟恢复，每日尿量800ml左右，肌酐800μmol／L。术后第8天行移植肾穿刺活检，诊断为ATN。现患者口服抗排斥药物为CsA，MMF和Pred。

目前的治疗宜采取（）

A.立即切除移植肾

B.大剂量激素冲击治疗

C.ALG／ATG治疗

D.加大免疫抑制剂剂量

E.恢复血透等待移植肾功能恢复
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阅读理解
阅读理解。
                                                                                                              237 West Palmdale Boulevard
                                                                                                              Fresno, Califormia93706
AmToy Corporation
Suite 15
TransAm Building
November 20, 2008
Dear Sirs,
     As a concerned parent, I am writing to protest your recent advertisement for Electro-Rain seen in local
media is California. Specially, I am referring to newspaper and magazine ads (attached this letter) and had
the week of November 15.
     Children respond to your type of advertising in an immature way; that is, they are able to understand
how expensive some toys are for middle-class parent. Further, your product is violent in nature. Youth
advertisement gives children the impression that it's fine to have "two guns and laser eyes." You also
suggest that children need your toy protect them "when you go outside." This is not a healthy attitude for
children to have.
     I hope you will stop advertising your product in such a way that may our children. 
                                                                                                                Sincerely yours,
                                                                                                               (Mrs.) Alma Hernandez Enc
     It's here! Ready for You, Now! It's Electro-Robo!
     Every lay dreams of being in control of a robot, and AmToy can make your dream come true Electro-
R0ho is the world's first fully autocratic robot with radio control. Standing 80 centimeters tall, Electro-Robo
is like a friend at home. He can walk, talk, and even shake your had! He has two guns and laser eyes to help
you defend yourself when you go outside with him. Every boy needs Electro-Robo!
     Ask your Mom and Dad to buy Electro-Robo for your birthday or for Christmas, which is coming up
soon. Imagine that you are in control of your friend for life, Electro-Robo!
     Available at all toy stores and department stores NOW!
1. What is the purpose of the letter?
A. To complain about a broken toy.
B. To order a gift for Chrisman.
C. To oppose the advertising. 
D. To apply for a job in a toy company.
2. Why does the writer of the letter that Electro-Robo is violent?
A.It bears arms.
B. It is expensive to buy.
C. It is 80 centimeters tall.
D. It is controlled by radio waves.
3. Electro-Robo can do all the following EXCEPT _____. 
A. shaking hands
B. sitting down　
C. talking
D. walking
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