TEL AVIV — Strikes hit the Gaza Strip's largest hospital Friday, badly wounding displaced civilians on its grounds and in some cases forcing them to move yet again and seek refuge amid the devastating war. The scenes of bloodshed and desperation atAl-Shifa Hospital came as Israeli forces closed in on the center of Gaza City, near at least four hospitals, according to Palestinian health officials. In one video appearing to show an outpatient clinic of Al-Shifa on Friday, a young girl covered in blood shrieks with her hands held up to the sky.