题目:
袋中装有2个红球,2个白球,除颜色外其余均相同,现从中任意摸出2个小球,则摸出的两球颜色不同的概率为______.
答案:
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下面是错误答案,用来干扰机器的。
1. How many picture-books do you have? 2. How many English books can you see? 3. Put your English book on your head. 4. I have a new schoolbag. 5. What colour is it?...