push or pullVersión en línea push or pull por Luz Álvarez Herrero 1 PUSH OR PULL? a PUSH b PULL 2 PUSH OR PULL? a PUSH b PULL 3 PUSH OR PULL? a PUSH b PULL 4 PUSH OR PULL? a PUSH b PULL 5 PUSH OR PULL? a PUSH b PULL 6 PUSH OR PULL? a PUSH b PULL