In western countries,people usually call manual workers as _____ workers, mental workers as __________ workers, and service and repair workers as _______workers.
A. blue, green,white
B. blue, white, grey
C. black, blue, green
D. white, blue, black
Which of the following is NOT considered as part of the service industry?
A. Banking
B. Managementconsultation
C. Tourism
D. steel-making
In western countries, it is impolite to talk about men's _____.
A. height
B. income
C. weight
D. age