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执行以下代码：my_list=['C#','Java','Python','R']for i in [1, 2]: print ('xixi') for opt_language in my_list: print ('haha')print ('hello')会在输出区打印（ ）次 haha
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【单选题】听力原文： Junk food, too little exercise and an increasingly sedentary life style, all well-known factors in the spiraling problem of childhood obesity in Britain. The causes are clear, but the government...
A.
Junk food.
B.
Too little exercise.
C.
An increasingly sedentary life style.
D.
All the above.
【单选题】Once people wore garlic around their necks to ward off disease. Today, most Americans would scoff at the idea of wearing a necklace of garlic cloves to enhance their well-being.However,you might find ...
A.
Alternative medicine is now a big business in the United States with more Americans seeking it out than ever before.
B.
Today,it is not unusual for mainstream doctors to incorporate alternative therapies into their practice.
C.
Over the last few decades,alternative medicine has become more popular,accepted, and practiced in the United States.
D.
People are tired of conventional medicine’s focus on technology.
【单选题】The writer quit his job because __________.
A.
he thought he would have a better time in the countryside
B.
B) he would have more work to do in the year to come
C.
he was sure that he had enough money to support his family
D.
he just wanted to improve the quality of his family’s life in the country
【简答题】在相同的条件下多次测量同一量值时，测量误差的（）和符号保持不变，或测量条件改变时按一定规律变化的误差称为系统误差。
【单选题】His wife thought Christopher suddenly quit his job because he______.
A.
couldn't wait to get promoted
B.
had experience in interior design
C.
wanted to do something he enjoyed
D.
couldn't bear the pressure from his job
【简答题】For all the fevered work being done,however,science is still far away from the Brave New World vision of engineering a perfect human or even a perfect tomato. Much more research is needed before gone ...
【简答题】我国采用国际标准或国外先进标准的方式通常有[填空(1)]、[填空(2)]和[填空(3)]
【简答题】在相同的条件下多次测量同一值时,误差绝对值和符号以不同的方式变化着的误差称为 。
【简答题】【问题2】 ITU组织接纳的3G国际标准之一的TD-SCDMA标准，已于2006年作为我国通信行业标准。 TD-SCDMA标准以其技术的先进性和系统的开放性，吸引了国内外通信行业的高度关注和广泛参与。随着3G技术商用化的深入，TD-SCDMA也逐渐开始步入实用化、民用化阶段。请用100字以内的文字简要列举出TD-SCDMA技术采用了哪些多址接入技术
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