gwd-24-22,近期jj有类似题目

bluevironika

c)    X-rays of patients of many different orthopedists working in several hospitals were reviewed.

d)    The healing of ankle fractures that have been surgically repaired is always checked by means of a follow-up x-ray.

选c.

d的不对,在于,手术康复的骨头用这个方法来检查,并不能说明,自然愈合的就不能用这个方法来检查,从而就不能支持预定这个方法是浪费钱的结论.