always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 always 1.0 一头合一尾中特