根据以下材料，回答1-20题 A preference for instrumental music indicates
单选
根据以下材料，回答1-20题
A preference for instrumental music indicates higher intelligence, research finds. People __1__ ambient music, smooth jazz, film soundtracks, classical music and similar genres without vocals tend to have higher IQs. While vocal music __2__ be seen as the " __3__ " of instrumental music, liking vocal music has no link to IQ. __4__ other words, many people with high IQs also like vocal music, but so do many with less impressive levels of __5__.
The conclusions come from a survey of 1,500 people. All were __6__ IQ tests and asked about their preferences for eighteen musical __7__ .The results showed that "...net of age,race, sex, education, family income, religion, current and past marital status and __8__ of children, more intelligent Americans are more likely to prefer __9__ music such as big band, classical and easy listening than less __10__ Americans."
A second __11__ survey of thousands of 16-year-olds and their musical preferences was carried out in the UK in the 1980s. This also found a __12__ between high intelligence and apreference for instrumental music. One theory about why liking instrumental music is linked to high IQ is the cognitive complexity of the music.
__13__ , the researchers found this couldn't be true. Opera, for example, is seen as complex, yet the people who like it are no more intelligent than those who __14__. The study's authors write: " It would be difficult to make the case __15__ big-band music is more cognitively complex than classical music. On the other extreme, as __16__, preference for rap music is __17__ negatively correlated with intelligence. However, preference for gospel musicis even more strongly negatively correlated with it. It would be difficult to make the case that gospel is less cognitively complex than rap."
Instead, the __18__ , according to Dr Satoshi Kanazawa, the study's co-author, is that instrumental music is more novel. Music that is novel——in other words, __19__ more recently in evolutionary terms——tends to be preferred by people with __20__ IQs.
第（10）题选__
