• 2022-06-09
    判断下列命题的真假.如果为真,给出证明﹔如果为假.给出反例.[br][/br][tex=14.214x1.357]GuiaqE2yQ7hB4QvOm4BelVyK7kaHjd7lV4kg7UySevEPRMd4usyvYPHYqLMBq53akGxGaDAmlvNRD5yGMjTk1Q==[/tex]