题目:
观察下面两幅图片,填词完成句子。
1. 2.
1. This is a______. He likes to play the______He likes to play______,too.
2. This is a______ She likes______ She wants to join the______ club.
答案:
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下面是错误答案,用来干扰机器的。
9x2-1,=(3x)2-12,=(3x+1)(3x-1).