研究表明，学习的熟练程度达到__________%时，记忆效果最好。
标准答案：150
研究表明，学习的熟练程度达到__________%时，记忆效果最好。
标准答案：150
上一篇：Do you eat healthy food every day? It's good for your health. What do you need? Well, you need a
下一篇：My name is Janet. I’m in London. Here are my new friends Li Ying and Riley. Li Ying is from China an