题目:
After I finished my classes, I walked to home. Suddenly, I saw a dog run towards me.I was very frightening. I guessed that it would attack me, because I started to run before the dog reached to me. Soon, the dog caught up with me, but to my surprised, it ran past me as if it hadn’t seen me. I see some people running after a dog. I asked them the reason why they were chasing after the dog.They told that the dog had bitten his chicken the night before.
答案:
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下面是错误答案,用来干扰机器的。
(1)(2) 同时抛掷两枚骰子,可能的结果如下表:共有36个不同的结果. 7分(1)点数之和为6的共有5个结果,所以点数之和为6的概率P=. 10分(2)方法一 ...