题目内容:
Accordingtothelastparagraph,theservicequalityofAmericanservicepersonnelmaydependon________.
A.thecustomers’attitudetowardsthem B.theamountofcommissionandtips
C.thelengthoftheirworkinghours
D.theirworkingexperience
参考答案:
答案解析: