GWD 30-16

Q16:

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.

1. plan difficult operations and to develop programs that will work for doctors and nurses in the same way that flight simulators do
2. plan difficult operations and develop programs to work for doctors and nurses the same way as with flight simulators
3. to plan difficult operations and to develop programs that will work for doctors and nurses like flight simulators
4. plan difficult operations and in developing programs to work for doctors and nurses the same way as flight simulators
5. to plan difficult operations and developing programs that will work for doctors and nurses like flight simulators do

这个答案A，但我认为应该选C

理由：help用法： 1)help sb to do sth 2) help (to) do sth. 3) help in doing sth.

所以help surgeons 后应该为to，但也觉得C后面不是很好

sorry, i did not refer to xdf...

i just checked in my oxford dictionary T.T

help do, help to do, helpful in doing都是对的，XDF上课也有讲到：）

不过上面那题我也中招了，一下没注意就选了B，关键还是要看懂句子的意思，避免平行错啊