```

```

---

Attention：

- 不要违反社会主义核心价值观

- 不要。","optionA":"选题","solutionId":"optionA":"酸性越强对高新技术产业的分布影响最小. [Human]: So, a piano has keys but how many strings?A standard piano typically has 88 keys and around 230 strings, with multiple strings per note for richer sound.

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