EPO的造血作用包括

A:刺激造血干细胞向红系方向发展 B:促进幼红细胞分化成熟 C:促进幼红细胞形成血红蛋白 D:减少红系祖细胞凋亡的比例 E:增强红细胞的寿命

rHuEPO抗体介导的纯红细胞再生障碍性贫血（EPO-PRCA）最有效的治疗方法（）。

A:改换其他类型EPO B:停用任何rHuEPO制剂 C:输血支持 D:免疫抑制治疗 E:肾脏移植

A．IL-1 B．IL-2
C．IL-3 D．EPO
E．IFN-α

促进红细胞生成的是（）

A:IL-1 B:IL-2 C:IL-3 D:EPO E:IFN-α

A．IL-1 B．IL-2
C．IL-3 D．EPO
E．IFN-α

刺激多能干细胞增生分化的是（）

A:IL-1 B:IL-2 C:IL-3 D:EPO E:IFN-α

关于EPO的叙述，哪项是不正确的

A:肾细胞内有EPO贮存，故生理情况下，血浆中有一定量的EPO B:肾脏氧供应不足可促进EPO的合成与分泌 C:肾外组织缺氧亦可促进肾产生EPO D:肾外组织也可产生EPO

Text 3
For years I. O.C. Czar Juan Antonio Samaranch has exhibited a pronounced ambivalence about drug use, and certainly his stance has allowed a number of golden boys and girls to keep their images shiny while doping. Careful athletes can easily beat the system that is in place to catch drug abusers. Unscrupulous sports federations can tailor testing schedules and tip off their constituents. Steroid creams can be flushed from the system in 24 to 48 hours. And for some of the most commonly used enhancers, such as erythropoietin (EPO), there are still no institutionalized teats. It is said that EPO, which increases stamina by boosting an athlete’s red blood cell count, can improve an athlete’ s performance in a 20-minmn by 30 sec., but it is otherwise a nightmare of a drug. Overdose on EPO, and the blood becomes too thick for the heart to pump. EPO is believed to be the culprit in no fewer than 25 mysterious deaths among world-class cyclists since 1987.
But athletes will take EPO in Sydney because they can, and some of them will take too much of it. In 1995 Olympic--caliber U.S. athletes were asked in a poll, "Would you take a drug that made you a champion, knowing that it would kill you in five years" more than half said yes. So even if we forget about fair play and credibility and Olympic ideals, we are left with this: the athletes must be protected from themselves arm the pressure to win. How
The I. O’. C. needs to do two things immediately: develop a spine, and federalize. The only way to catch a cheat is with unannounced, out-of-competition testing. Historically the I. O.C. has delegated decision making to individual sports federations, but that policy is not working when it comes to drags. A third of the 28 federations have yet to agree to out-of-competition tests in advance of the Sydney Games. The I. O.C. should call an emergency session and make a new rule applying to all sports, then send out its newly empowered testers.
As for that imperfect test for EPO-use it anyway. As gold medal marathoner Frank Shorter, now chairman of the U.S. Anti-Doping ’Agency, says, knowing a test is looming that will knock cheaters off stride. Shorter says that if there is no EPO test at Sydney, then every endurance or strength performance is suspect. He’s right. And when sport becomes suspect--when no one believes in it--it’s no longer worth watching.

What is following is the cause that will make the Olympic Games suspect and no longer worth watching（）

A:The participation of cheaters B:The untested EPO-use C:Lack of new world records D:Unannounced and out-of-competitive test

Text 3
For years I. O.C. Czar Juan Antonio Samaranch has exhibited a pronounced ambivalence about drug use, and certainly his stance has allowed a number of golden boys and girls to keep their images shiny while doping. Careful athletes can easily beat the system that is in place to catch drug abusers. Unscrupulous sports federations can tailor testing schedules and tip off their constituents. Steroid creams can be flushed from the system in 24 to 48 hours. And for some of the most commonly used enhancers, such as erythropoietin (EPO), there are still no institutionalized teats. It is said that EPO, which increases stamina by boosting an athlete’s red blood cell count, can improve an athlete’ s performance in a 20-minmn by 30 sec., but it is otherwise a nightmare of a drug. Overdose on EPO, and the blood becomes too thick for the heart to pump. EPO is believed to be the culprit in no fewer than 25 mysterious deaths among world-class cyclists since 1987.
But athletes will take EPO in Sydney because they can, and some of them will take too much of it. In 1995 Olympic--caliber U.S. athletes were asked in a poll, "Would you take a drug that made you a champion, knowing that it would kill you in five years" more than half said yes. So even if we forget about fair play and credibility and Olympic ideals, we are left with this: the athletes must be protected from themselves arm the pressure to win. How
The I. O’. C. needs to do two things immediately: develop a spine, and federalize. The only way to catch a cheat is with unannounced, out-of-competition testing. Historically the I. O.C. has delegated decision making to individual sports federations, but that policy is not working when it comes to drags. A third of the 28 federations have yet to agree to out-of-competition tests in advance of the Sydney Games. The I. O.C. should call an emergency session and make a new rule applying to all sports, then send out its newly empowered testers.
As for that imperfect test for EPO-use it anyway. As gold medal marathoner Frank Shorter, now chairman of the U.S. Anti-Doping ’Agency, says, knowing a test is looming that will knock cheaters off stride. Shorter says that if there is no EPO test at Sydney, then every endurance or strength performance is suspect. He’s right. And when sport becomes suspect--when no one believes in it--it’s no longer worth watching.

What is following is the cause that will make the Olympic Games suspect and no longer worth watching（）

A:The participation of cheaters B:The untested EPO-use C:Lack of new world records D:Unannounced and out-of-competitive test

关于EPO的叙述，哪项是不正确的

A:肾细胞内有EPO贮存，故生理情况下，血浆中有一定量的EPO B:肾脏氧供应不足可促进EPO的合成与分泌 C:肾外组织缺氧亦可促进肾产生EPO D:肾外组织也可产生EPO