A、penetration pricing
B、variable-cost pricing
C、premium pricing
D、price skimming
A、keepyour elbows in against the sides of the body.
B、offer to pour a drink for your neighbors before serving yourself.
C、excuse yourself if you need to leave the table.
D、answer the telephone at the table.
A. complete the stroke,hold your oar out from the boat and level with the water
B. dip the blade of your oar into the water and leave it there
C. lift your oar to a vertical position
D. complete the stroke,raise your oar slightly,swing it forward,and place it in the boat
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