• 2022-05-30
    [tex=1.5x1.214]CdmaEThmyR7da7w3sVH5+E0JTFQ8Gi3m0duPUwyX/oI=[/tex]的半衰期为[tex=10.286x1.286]0sPuCg5hKDVHMDZ8SkjmMZFRl8ld7gsnI8bEAfHjWML7goslb+3eHcnWI2RM8rNv[/tex]。考古测定某古墓木质样品的[tex=1.5x1.214]CdmaEThmyR7da7w3sVH5+E0JTFQ8Gi3m0duPUwyX/oI=[/tex]含量为原来的[tex=2.643x1.143]n8JLbe4mbH5ziTgH/AwOpw==[/tex]。问此古墓距今已有多少年?