Is Columbine Victims Death Photos The Next Big Thing? Experts Weigh In High School Honored 22 Years After Tragedy Cbs Colorado
65535是正数，故补码与其原码一样。 以16位为例，二进制为 1111111111111111，十六进制为 ffff。 2进制书写繁琐， 复杂，易错；由于16进制的基数是2的4次幂，所以16进制可以实.
What you can do to remember the victims of Colorado's Columbine High
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