请确认题目
看清楚下面这道题，确认无误再开始录制——选错题会导致这次批改对不上号。
PRN-E1
They tried many different ways to treat the patients and recorded _____(they) results.
看清楚下面这道题，确认无误再开始录制——选错题会导致这次批改对不上号。
They tried many different ways to treat the patients and recorded _____(they) results.