分级阅读 · A2 · EN
数据交易
Mia joined a new fitness app last month, and it asked her to share her location and heart rate.
In return, the app promised a free plan and a small gift card.
At first, Mia thought this was a fair deal, so she tapped "agree" without reading the long privacy note.
Two weeks later, she noticed ads for running shoes appearing on every page she opened.
She felt surprised because she had never searched for shoes online.
After reading the app's data rules carefully, Mia learned that her information could be sold to other companies.
She quickly changed her settings and turned off location sharing.
Her friend Leo told her that many free apps earn money this way, which is why they look free.
Mia now checks every app before she downloads it, and she reads the privacy page first.
She still uses the fitness app, but she shares only the data she really needs to share.
当前未登录，已读与收藏会先记在本机浏览器；登录后自动同步到账号。
共 3 题，答完自动计入你的能力雷达（仅记录维度正确率，不排名）。
1. What did the fitness app ask Mia to share?
2. Why did Mia feel surprised two weeks later?
3. What can we infer about free apps from Leo's words?
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