题目选项分析

Researchers are using computer images to help surgeons plan difficult operations and to develop programs that will work for doctors and nurses in the same way that flight simulators do for pilots, letting medical personnel practice their techniques and test their reflexes before they ever see a patient.

Researchers are using computer images to help surgeons to plan difficult operations and to develop programs that will work for doctors and nurses like flight simulators for pilots, letting medical personnel practice their techniques and test their reflexes before they ever see a patient.