What is the possible reason that some foods promote the brain performance? [br]

游客2023-12-24  16

问题 What is the possible reason that some foods promote the brain performance? [br]  
Why certain food choices might help the brain function better remains unclear. Perhaps these regimens’ known cardiovascular benefits, which promote a good flow of blood and oxygen to the brain, are key. But other factors may be at work. Of course, questions about when these dietary changes need to happen or how diet stacks up against other factors, such as physical activity, sleep patterns and genetics also remain unanswered.
You can look at online sales as divided roughly into two groups; small-ticket and big ticket items. Big-ticket items include computer equipment and consumer electronics, where orders can easily be more than 1,000. Small-ticket items include apparel, books, software, videos, and toys, where the average purchase is typically less than ¢100. In the early days of e-commerce, sales of small-ticket items vastly outnumbered those of large-ticket items. But the recent growth of big-ticket items has changed the overall sales mix.

选项 A、Small-ticket items used to be more expensive.
B、Consumers are spending more on big-ticket items.
C、Software and computer equipment are big-ticket items.
D、Sales of small-ticket items are up recently.

答案 B

解析 原文指出,过去人们网上购买的小额商品多于大额商品,而最近大额商品购买量的增加改变了这一销售比重。言外之意,人们购买的大额商品已经超过小额商品。
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