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https://hottg.com/hk_self_defense/711
公海成立以來，為確保討論質素，都以邏輯題作為驗證題目。
以下將會分享一些已廢除的題目，供大家作練習之用：
《第一題》邏輯題：
已知所有泰拳手都會出拳，所有會出拳的人都擁有拳套。小明擁有拳套，所以他是一個泰拳手。
以上推論是否正確？
《第二題》
邏輯題：
已知有學過柔道的人都會大外割。小明沒有學過柔道，因此他不會大外割。
以上推論是否正確？
《第三題》
邏輯題：
已知如果選手A與選手B作賽，選手A必定會落敗。
今次比賽中，A全部獲勝，由此可見A的對手中沒有B。
以上推論是否正確？
《第四題》
邏輯題：
某門派中，要成為教練需要符合以下基本條件：
(a) 年滿18歲
(b) 習武3年以上
大文未符合成為教練的基本條件，由此可見大文未滿18歲，而且習武未滿3年。
以上推論是否正確？
答案：
FFTF
邏輯題：
已知所有泰拳手都會出拳，所有會出拳的人都擁有拳套。小明擁有拳套，所以他是一個泰拳手。
以上推論是否正確？
《第二題》
邏輯題：
已知有學過柔道的人都會大外割。小明沒有學過柔道，因此他不會大外割。
以上推論是否正確？
《第三題》
邏輯題：
已知如果選手A與選手B作賽，選手A必定會落敗。
今次比賽中，A全部獲勝，由此可見A的對手中沒有B。
以上推論是否正確？
《第四題》
邏輯題：
某門派中，要成為教練需要符合以下基本條件：
(a) 年滿18歲
(b) 習武3年以上
大文未符合成為教練的基本條件，由此可見大文未滿18歲，而且習武未滿3年。
以上推論是否正確？
答案：
FFTFIf running the app in compatibility mode does not work, try accessing the app through a VPN. Sometimes, certain apps and services are unavailable in specific locations, or a person's IP address is banned by Telegram due to long hours of usage. It is also possible that the app itself is blocked in certain countries. Hence, you should try connecting the app via a VPN to eliminate this possibility. If you're already using a VPN and the app isn't working correctly, try changing your IP and location on the VPN first and, when that doesn't help, consider temporarily disabling it.
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Yes! Voice calls are currently available to users around the world.
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