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"Please"and"Thankyou"arewordswhichareveryhelpfulwhengreetingotherpeople,andbuyingor.[]A.good;serviceB.goods;servicesC.good;servicesD.goods;services

题目详情
"Please" and "Thank you" are words which are very helpful when greeting other people, and
buying____ or____.
[     ]
A. good; service    
B. goods; services    
C. good; services      
D. goods; services
▼优质解答
答案和解析
D