"
"In observational studies, we often have to rely on assumptions that are not directly testable."
💡 解读:
在观察性研究中,我们常常不得不依赖于无法直接检验的假设。
💬 推荐名言
20句推荐
🎲 随机 · 灵感闪现
✨ 名言如星,拾光而行