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支持3G还是4G网络?
https://detail.tmall.com/item.htm?spm=a1z10.5-b-s.w4011-15153415710.88.8lrJ9u&id=539370794537&rn=7906fd4b789caef1a38671e2669dd562&abbucket=9&wwlight=cntaobao%E5%BE%AE%E6%98%9F%E6%B8%B8%E6%88%8F%E6%9C%...