实验需要设一个对照组。 實驗需要設一個對照組。 實驗需要設一個對照組。
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- Simplified
- 实验需要设一个对照组。
- Traditional (Taiwan)
- 實驗需要設一個對照組。
- Pinyin
- Bopomofo
Written with HSK 7-9 vocabulary, at CEFR level C1.
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