[单选题]
At which position in the d0j ;4uuw,mnqx q79qtw3jgk )x/:zv wc px(/f nephron would you expect the solute concentrp)opqb -k (* v8ki:+m:wdesm sation of the fil me(pqd8s)psi-m: :vbk o*k+wtrate to be between 200% and 300% that of the normal blood solute concentration and for water, but not sodium, to be drawn out of the filtrate into the medulla?
