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  3. To master the violin takes 10,000 hours of practice. Put in that time and【C1】________will follow. This, at least, is what many m

To master the violin takes 10,000 hours of practice. Put in that time and【C1】________will follow. This, at least, is what many m

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问题     To master the violin takes 10,000 hours of practice. Put in that time and【C1】________will follow. This, at least, is what many music teachers tell their pupils. Psychologists are more【C2】________. Some agree practice truly is the thing that【C3】________experts from beginners, but others suspect genes play a role, too, and that【C4】________the right genetic make-up even 20,000 hours of practice would be pointless.
    A study just published in Psychological Science, by Miriam Mosing of the Karolinska Institute, in Sweden, suggests that the skeptics are【C5】________. Practicing music without the right genes to【C6】________that practice up is【C7】________useless.
    Dr Mosing drew her【C8】________in a time-honored way—by studying twins. She and her colleagues【C9】________ 1,211 pairs of identical twins (who share all their genes) and 1,358 pairs of fraternal twins (who share half). They asked each participant【C10】________he or she played a musical instrument or actively【C11】________singing. Those who did were asked to【C12】________how many hours a week they had practiced at different ages. From this Dr Mosing was able to calculate a【C13】________for each individual’s lifetime practice. Anyone who did not play an instrument or sing got no point.
    Next, Dr Mosing tested her volunteers’ musical a-bilities. Expert musicians are exceptionally good at【C14】________differences in pitch, melody and rhythm. She therefore expected to find that if someone had put in【C15】________practice time his musical ability would be as high as an expert’s. But that was not true. In fact, there appeared to be no【C16】________between practice and musical ability of the sort she was measuring. A twin who practiced more than his genetically identical co-twin did not appear to have better musical abilities as a result. In one case the difference between two such twins was 20,228 hours of practice,【C17】________the pair’s measured musical abilities were found to be the same.
    That is not to say practice has no【C18】________. Playing an instrument and singing are physical skills, and do take a long time to【C19】________. And Dr Mosing has shown that musical ability has a big genetic【C20】________.
【C10】
选项 A、how
B、why
C、whether
D、where
答案C
解析 根据下句Those who did及本段最后一句Anyone who did not可知，并不是所有人都懂乐器。推断研究者首先询问被调查者是否会乐器，选C项whether。A项how、B项why或D项where代入后指调查者询问练习乐器的方式、原因或地点，与被调查者需要回答的下一问题没有逻辑上的关联。
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