fungarwai 发表于 2022-11-13 18:15:23

what is the answer

??????????????????

https://cdn.artofproblemsolving.com/attachments/a/8/7a6a10e8b4132440627c9030e9f269ca6da650.png

https://artofproblemsolving.com/community/c423387h2955507_what_is_the_answer

northwolves 发表于 2022-11-13 22:59:34


直觉是选这个

曹半 发表于 2022-11-15 15:50:58

A，确定无疑
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