采用正式物流管理组织,在增强管理职能的同时,也会节约财务支出。( )
参考答案:错
He needs ________ his room. [ ]
A. to clean
B. cleaning
C. cleans
D. clean
无损探伤检查出的不合格焊缝,返修后可以不进行检查。( )