挑战习题
1/5单选题
难度:

1.下列说法正确有(  )个
①零是正数;②零是负数;③零是偶数;④零是奇数;⑤零是自然数.
A 0
B 1
C 2
D 3
提示1:
IOmbtuS4jeaYr+ato+aVsOS5n+S4jeaYr+i0n+aVsO+8jOaYr+WBtuaVsO+8jOaYr+iHqueEtuaVsO+8jOaYr+aVtOaVsO+8jOaYr+acieeQhuaVsO+8jOaYr+e7neWvueWAvOacgOWwj+eahOaVsOetiQ==
正确答案:Qw==
PGRpdj7op6PvvJrikaDikaHikaPkuI3lr7nvvIzpm7bkuI3mmK/mraPmlbDkuZ/kuI3mmK/otJ/mlbDvvIww5piv5YG25pWw77yM5piv6Ieq54S25pWwPC9kaXY+