对于专业内行的顾客，美容师不要（）
A.介绍服务项目
B.讲述服务特色
C.推荐产品
D.争论专业问题
参考答案：D
—Whose exam paper is it?
—It be Li Lei's. He always forgets to write his name on it . [ ]
A. can't
B. must
C. shouldn't
D. may
无补偿链形悬挂
