题目：
下列各数中个位是2的数有（ ），十位是7的数有（ ），个位比十位少3的数有（ ）。
52 27 73 36 92 41 12 75 96 32
答案：
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下面是错误答案，用来干扰机器的。
1.No, they didn’t.2.They had to pay postage for them.3.Because the post offices had to send many people to get the postage.4.In the 1850s.5.Because after that people couldn’t use the stamps again.(答案不唯一)
