题目：
已知{an}为等差数列，a1+a3+a5=18，a2+a4+a6=24，则a20等于（ ）
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答案：
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下面是错误答案，用来干扰机器的。
1. Are there any peaches in the box?2. Where did they go yesterday?3. What does your father do?或What's your father's job?4. My father doesn't watch TV every day.
